The manager thinks it’s necessary.) In this lesson, you can learn about the modal verbs must, have to and should.Do you know the difference between 'must', 'have to' and 'should'? Learn the differences between these Modal Verbs in English: Must vs. Have to, and Mustn’t vs. Don’t Have to. Here is Audio Word Study #084 on DailyStep.com In today’s Word Study, I’ll explain how to use the modal verbs MUST and CAN’T when you are expressing logical conclusions in English.Let’s take a closer look at some of the structures in the story above, Harry must be crazy! Use "need to" to express that something is important for you to do. We use must when we want to express something which is necessary or is essential, in a particular situation. In British English there is some difference between them. The modal must also expresses opinion, one person’s point of view. MUST is used when expressing obligation or an unavoidable requirement, whereas SHOULD is more of a recommendation, or simply a desirable goal. To express obligation or duty. ~ Yes, I must. Must definition: You use must to indicate that you think it is very important or necessary for something... | Meaning, pronunciation, translations and examples You mustn’tshow it to anybody. Must "Must" is also used to talk about obligation and is used in written rules and instructions: You must submit your proposal by noon on 12th July. Modal Verbs. (note: we use ' I must admit' before a surprising or negative comment. At times, English speakers use "don't need to" to express that they don't expect someone to do something. English Grammar: ANOTHER vs OTHER vs OTHERS vs THE OTHER, Suffixes: Words Ending with Suffixes “-ent/-ence” and “-ant/-ance”, Opposites: List of 100 Common Opposites in English, Verb Forms: List of Regular and Irregular Verbs in English, Learn English Grammar with Pictures: 15+ Grammar Topics, Prefixes: List of 50+ Common Prefixes in English. We include have to here for convenience. Spelling it 'must of' is wrong. English Grammar: Must and Have to, Mustn’t and Don’t Have to, Must vs. Have to, and Mustn’t vs. Don’t Have to, Must and Have to, Mustn’t and Don’t Have to, Must and Have to, Mustn’t and Don’t Have to | Image, Antonym List Using “MIS, DIS, UN, IM, IN” Prefixes, Using the Present Continuous Tense in English, Subject-Auxiliary Inversion | English Grammar, 10+ Common English Expressions with CAN’T, LIKE and ALIKE: Useful Difference between Like and Alike, Prefixes and Suffixes – Definition and Examples …, 250+ Frequently Used Collocations List in English, Top 70+ Most Popular Contractions in English …, Commonly Confused Words: 7 English Word Pairs …, English Idioms: Learn English Idioms with Topics, Visual Dictionary: Vocabulary with Pictures, Commonly Confused Words: 7 English Word Pairs that Confuse Absolutely Everyone, Infinitives: List of 50+ Verbs Followed by Infinitives in English, SO and SUCH: Difference Between So and Such (with Useful Examples). “Must”, as we know, is used with obligation in English. Must or have to followed by an infinitive are used to express obligation. ; You must wear a seatbelt at all times. Meaning 1: We use MUST when we want to say that it is necessary or very important that something happens in the present or future. 1. They are both followed by the infinitive. 2. Form: subject + “ must have ” + past participle. How To Use MUST MUST is a modal verb – in other words, it helps give meaning to other verbs. When we use ‘must’ this usually means that some personal circumstance makes the obligation necessary. Must and have to Select the correct option, drag and complete, match ID: 128584 Language: English School subject: English as a Second Language (ESL) Grade/level: Secondary, a2 Age: 11+ Main content: Modals Other contents: Add to my workbooks (149) How To Use MUST 1. ; You must wear a seatbelt at all times. “Have to” and “must” are very similar in meaning and can often times be used interchangeably. We use have to to talk about an action that is necessary because of rules or laws, or because someone obliges us to do it: We make negatives, questions and short answers with a form of do: In positive sentences we can often use must and have to with little difference in meaning, because many things are important both because we think so and because there are rules: Note the difference in meaning between mustn’t and don’t have to. This also refers to laws and regulations. (It is in the rules of their work.) must vs have to . ThoughtCo uses cookies to provide you with a great user experience and for our, English as a Second Language (ESL) Expert, How to Use Must, Have to, and Need to in English, To Make it in Journalism, Students Must Develop a Nose for News, How to Speak English for Medical Purposes: Dental Check-up, Past, Present, and Future Are Simple Tenses, 12 Must Have Tools for Studying Live Insects, Learn to Order Events for Narrative Writing Assignments, The 201 Most Commonly Misspelled Words in English, Knowing When You Really Need to Hire an Architect, M.A., Music Performance, Cologne University of Music, B.A., Vocal Performance, Eastman School of Music. However, a difference between must and have to can be found in the nature of the obligation. You must go. ; No -s. Modal verbs don’t add -s after he/she/it.. I suspect that "must of" is one of those phrases which is on the cusp of changing from "ever so wrong" into something that is perfectly acceptable. Rules and laws We use have to to talk about an action that is necessary because of rules or laws, or because someone obliges us to do it: Doctors sometimes have to work on Sunday. What’s the Difference? You must not use a calculator during the exam. must example sentences. Sometimes, "must" and "have to" can be used to speak about responsibilities. The negative form of "must" expresses the idea that something is prohibited—this form is very different in meaning than the negative of "have to"! We use have to to talk about an action that is necessary because of rules or laws, or because someone obliges us to do it: Doctors sometimes have to work on Sunday. Additionally, … Traffic officers must be accustomed to seeing occasional bizarre accidents like this one, because they see so many accidents each year The passengers in the car must have been extremely frightened. The speaker thinks it’s necessary or important to do something. Must and have to. MANAGER: You must get up early tomorrow. Must is a modal auxiliary verb. Both words must and have to are used to indicate a strong obligation. Must means that the obligation to do something comes from the speaker. Would love your thoughts, please comment. Smallness musthave been fashionable and something of a status symbol in both the Apso and the Shih Tzu as well as the Pekingese. We use must to Express a stronger point of view. "Must" is also used to give a strong recommendation: You must tell him before it's too late. (NOT I must to go to the doctor.) Fans must use the swipe card to gain entry but an electronics system failure meant many could not get through. (= It is important that you go.) Similar to have to – strong obligation. Use "have to" in the past, present, and future to express responsibility or necessity. ; You must arrive in class on time. He mustbe careful. The obligation comes from an external source. I must say, this food is delicious! Mark: She must have been ill. "Don't need to" also expresses that a particular action is not necessary. So, it is obvious that the degree of emphasis is least when we use should in our sentence. Must-have definition, something considered absolutely necessary or essential to own: This cookbook is a must-have for chocolate lovers. In other words, it’s not a rule. We must fasten our seatbelts. (note: in this sentence, we would not say ‘I must admit, this food is delicious!’... 3. In English, we use "must" and "have to" to express a strong rule or law. or I have to go. We make negatives, questions and short answers like this: You mustn’t go. ; You must give up smoking, it's bad for you. Definition of Must Must is a helping verb, which can be used in sentences to show compulsion or obligation. However, "must" is generally used for strong personal obligations and "have to" is used for responsibilities at work and in everyday life. I must memorize all of these rules about modal verbs. When expressing obligation, the past of must and have to is always had to: I had to wash my car yesterday . To emphasize the necessity of something. "Mustn't" is used to express that something is prohibited. A CONCLUSION: The car driver must have panicked when he saw the buses moving in on both sides. ; You must give up smoking, it's bad for you. 3. But they each have slightly different connotations and uses. (sound) The car passengers must have escaped out the back. Or "must've". "Don't have to," "don't need to" and "mustn't" have very different meanings. I must admit, … … When we use ‘must’ this usually means that some personal circumstance makes the obligation necessary. Mus t and have to are both used for obligation and are often quite similar. We had to go to bed at 8 o’clock when we were kids. See here for a detailed explanation. Humans must have drinking water at least every two days. (It's her birthday and I decide to do that.) Have to can play the role of must in the past (had to) present, and future tenses. The difference between MUST and SHOULD Must and Should are both modal verbs. Humans must have drinking water at least every two days. At nearly every step, the team must overcome complex technical hurdles, most of which have never before been faced. The crucial difference between should, ought to and must, is based on the extent to which they emphasize, in the sense that must is the most emphatic of the trio. You picked one of two, and it wasn't the first: it must have been the second. The modal verb must has two past tense forms: had to and must have. However, "must" is generally used for strong personal obligations and "have to" is used for responsibilities at work and in everyday life. Must have expresses a conclusion about what happened (past), and is based on putting details and clues together and making an inference (a sure guess). (past simple.) He must come with us. I musthurry. The verbs need, have to, and must are all synonyms of one another and are used to mean that something is necessary or required. (=The obligation comes from the manager. (No other … ♦ I must buy flowers for my mother. The bus passengers must have heard a crunch. 'Must' can also be used to show that we are certain something is true. We can also use ‘must… 2. Using MUST in English. You must stop playing computer games. 1. Need, when followed by to and a verb, is the narrowest of the three verbs. In negative sentences we often use mustn’t to say that something is against the rules, or against the law: We use don’t have to to say that people are not obliged to do something: In questions we usually use do/does … have to (not must) to ask if something is obligatory or important: Prefixes and Suffixes in English! This form is often used for something that is important one time, rather than referring to a responsibility or duty. On the other hand, “must” is used to convey a stronger meaning than simply “have to”, it’s more forceful. Use "must" to express something that you or a person feels is necessary. Both MUST and HAVE TO express obligation. I was browsing a completely unrelated site and came across the following interesting discussion on the ever increasing proliferation of the phrase, "must of":You mean "must have", btw. We use must when the speaker thinks it is necessary or important to do an action: We make negatives, questions and short answers like this: 2. Which form we use depends on whether we want to express obligation or if we want to say how certain we are about the probability of something happening. Use must + infinitive without to. Learn English idioms with …. “We need to …” “We have to…”. You picked one of two, and it wasn't the first: it must have been the second. Must and Have to, Mustn’t and Don’t have to. MUST is used to talk about what the person himself wants. Modals With Passive Voice 1 / 2 14. Must have expresses an opinion about an earlier (past) situation. Verb (head) to do with certainty; (indicates that the speaker is certain that the subject will have executed the predicate) If it has rained all day, it must be very wet outside. This also refers to laws and regulations. In other words, it’s not a rule. have to, must Have to is NOT an auxiliary verb (it uses the verb have as a main verb). You mustvisit the Colosseum when you will go to Roma. As such, many people use them in this way with no distinction. "She must have left the house by now; it’s nearly 11 o'clock." ; 2. Manager: Why is Mark late? How to use must in a sentence. Modal Verbs. Obligation from the speaker. The children must be asleep by now. (NOT He must comes with us. Must and have to Select the correct option, drag and complete, match ID: 128584 Language: English School subject: English as a Second Language (ESL) Grade/level: Secondary, a2 Age: 11+ Main content: Modals Other contents: Add to … To emphasize the necessity of something. I had to take those pills twice a day. Must, have to: present: past: When expressing obligation, we say: I must go. — the requirement is an imperative I must go now. Example sentences with the word must. You must not use a calculator during the exam. However, "must" is generally used for strong personal obligations and "have to" is used for responsibilities at work and in everyday life. Must and have to both express obligation. ~ Yes, I must. Sometimes, "must" and "have to" can be used to speak about responsibilities. You use must to put pressure on yourself or someone else by expressing: An obligation or constraint with must: 1. NOTE: "have to" is conjugated as a regular verb and therefore requires an auxiliary verb in the question form or negative. It will be very useful. You mustn't be late for work on your first day. For example: "I must park my car over there. 2. We use have to / must / should + infinitive to talk about obligation, things that are necessary to do, or to give advice about things that are a good idea to do. 1. In this grammar les... Do we say "I must do my homework" or "I have to do my homework"? This form is used only in the present and future. MUST: HAVE TO: The speaker thinks it is necessary, or it is the rule. "Must" does not exist in the past. Must or Have to It´s a worksheet with a short grammar explanation on the use of MUST, MUSTN´T, HAVE TO and DON´T HAVE TO and some activities to practise. "Must," "have to," and "need to" in the positive or question form are used to speak about responsibilities, obligations and important actions. We include have to here for convenience. Must vs. have to Both Must and have to express obligation or necessity, but there are some small differences: • Must expresses the speaker's feelings, whereas have to … must/mustn’t, have to/don’t have to – form . (= It is important that you go.) Jane: He must have missed the bus. How to use must in a sentence. She must notclimb on the table. We mustn’twear a cap in the classroom. In British English there is some difference between them. In this case we are making a logical deduction based on the evidence we have. Download full-size image from Pinterest . Have to implies that the obligation comes from someone else; it’s something the speaker can’t change. I must memorize all of these rules about modal verbs. Sarah: Why not? “Must”, as we know, is used with obligation in English. ; People must remain seated until the show is over. Examples. “We need to …” “We have to…” The modal must also expresses opinion, one person’s point of view. I had to study harder. These words can often be used interchangeably in English; the main difference between must and have to can be the emotional context. Sometimes, "must" and "have to" can be used to speak about responsibilities. Use "have to" in the past, present, and future to express responsibility … Listed below are explanations, examples, and uses of must / have to / need to / and mustn't / not have to / don't need to. "Must" is also used to give a strong recommendation: You must tell him before it's too late. She must learn to drive. "must have": we believe the action definitely happened. "Don't have to" is used to express that something is not required. They are both followed by the infinitive. “I must go and see them sometimes.” Learn the definition, meaning, and …, Collocations in English! Must is a modal auxiliary verb. Verb (head) to do with certainty; (indicates that the speaker is certain that the subject will have executed the predicate) If it has rained all day, it must be very wet outside. You must abide by the law. 2. (It is in the rules of their work.) Examples: Mark: Jane didn’t eat anything yesterday. Spelling it 'must of' is wrong. While must defines the exigency of doing something, have to denote an obligation which is imposed by someone else. 1. I was browsing a completely unrelated site and came across the following interesting discussion on the ever increasing proliferation of the phrase, "must of":You mean "must have", btw. ; People must remain seated until the show is over. We use "must have", "can't have" and "might have" in the same way as the present perfect - the action we are describing happened, or did not happen, in the past and is still true in the present. These words can often be used interchangeably in English; the main difference between must and have to can be the emotional context. Use must + infinitive without to Must is a modal verb, and modal verbs are followed by infinitive without to. You mustbe back before ten. ; You must arrive in class on time. This table below shows us the past tense of must and have to and when to use them. We normally use must when to talk about obligations that come from the opinion of the speaker. We make negatives, questions and short answers like this: You mustn’t go. … See more. I suspect that "must of" is one of those phrases which is on the cusp of changing from "ever so wrong" into something that is perfectly acceptable. It is, however, possible if so desired. In English, we use the words must and have to when we want to say that something is to be done necessarily or compulsorily. “You must be here by 1:00pm.” In this sentence, the use of “must” gives more import to the need to be here by 1:00pm. I must admit, it was a frightening experience. “I must go and see them sometimes.” must/mustn’t . IMPORTANT: The past form of "have to" and "must" is "had to." Hence, it doesn't make sense to use them together. 33. must example sentences. I must remember to get a present for Daisy. Must means that the obligation to do something comes from the speaker. Must definition: You use must to indicate that you think it is very important or necessary for something... | Meaning, pronunciation, translations and examples 3. Must / Mustn't / Needn't / Have to 12-13. Use the negative form of "need to" to express that something isn't necessary, but possible. Must "Must" is also used to talk about obligation and is used in written rules and instructions: You must submit your proposal by noon on 12th July. Must may also make a recommendation: 1. You can say: “She must go to the store” and “She has to go to the store.” The meanings here are the same. MUST. Men mustwear a jacket and tie, and it would appear that some obscure rule forces all the women to wear a floral twin set and pearls. Or "must've". However, it can also be used to show that … I must go now. You mustsee this movie ! In terms of creating a sentence with “must”, the word order is not difficult. must . The negative form of "have to" expresses the idea that something is not required. Must and have to are both used for obligation and are often quite similar. MUST is used to talk about what the person himself wants. In terms of creating a sentence with “must”, the word order is not difficult. Must you go? We usually use must to talk about obligations which come from the speaker and we generally use have (got) to when we refer to obligations that come from outside the speaker. However, they are used differently depending on who imposes the obligation. Both MUST and HAVE TO express obligation. 2. ID: 31964 However, a difference between must and have to can be found in the nature of the obligation. The children must be asleep by now. We use must to express a stronger point of view. Must you go? Let’s look at all its meanings here, so you can avoid misunderstandings! I have to take these pills twice a day (the doctor told me to) I must study harder (this comes from my own motivation) When talking about the obligation in the past, we always use had to. 2. have to, must Have to is NOT an auxiliary verb (it uses the verb have as a main verb). It emphasizes the importance or need of something. Hence, it doesn't make sense to use them together.. See here for a detailed explanation.. From the site: We often use must for more personal opinions about what it is necessary to do, and have to for what somebody in authority has said it is necessary to do.. It is most often used … 5-6-7 Mustn't vs Don't Have to Exercises 1 / 2 / 3 8-9-10 Must vs Have to / Has to Exercises 1 / 2 / 3 11. MUST. On the other hand, ought to is less emphatic than must, but more than should. ; 2. 33. Both words must and have to are used to indicate a strong obligation. We use must to express a stronger point of view. For example: "I … ♦ I have to buy flowers for my mother-in-law. Example sentences with the word must. Must or have to followed by an infinitive are used to express obligation. Collocation refers to a natural combination of words …, Below are the contractions definition and list of commonly used …, It’s hard to deny the fact that the English language …, Learn English idioms with different topics. (NOT I must to go to the doctor. “We need to …” “We have to…” The modal must also expresses opinion, one person’s point of view. (It is not my decision - my husband asked me to buy them.) Comma Rules: 8 Rules for Using Commas Correctly! The meeting is at nine. MUST. In the negative form, an interdiction with must not (or mustn’t). Have to Do—Responsibilities. Must is a modal verb, and modal verbs are followed by infinitive without to.. I must go to the doctor. A reader asks for clarification on these three common verbs. To express obligation or duty. I must go to the doctor. You mustn't be late for work on your first day. — the requirement is an imperative We use have to / must / should + infinitive to talk about obligation, things that are necessary to do, or to give advice about things that are a good idea to do. MUST HAVE; Must expresses an opinion: an inference, a conclusion, based on known details. Choose the best option for the following questions. You must go. Editor Kory Stamper explains.. We use “ must have ” + past participle to express deductions and conclusions from the past. Must and have to. And modal verbs essential, in a sentence with “ must ”, as we,! To express responsibility or necessity we are making a logical deduction based on the evidence we have ”... ) situation do my homework '' an obligation which is necessary we know, is the.. Must ”, as we know, is used with obligation in English and don ’ ). Rules about modal verbs n't expect someone to do my homework '' or `` I have to followed by infinitive... A modal verb, and …, Collocations in English question form or negative to my... Not difficult form is often used for obligation and are often quite similar or comment... One person ’ s not a rule by infinitive without to must is used with obligation in English the! ’... 3 + “ must ”, the word order is not required are very in! Rather than referring to a responsibility or necessity ) the car driver must have left the by... Wash my car over there … must step, the word order is not my decision my! Can play the role of must must is a must-have for chocolate lovers People use together! When he saw the buses moving in on both sides found in the past must! Is n't necessary, or simply a desirable goal defines the exigency of something... Additionally, … “ must ”, the past tense of must have! Conjugated as a main verb ) of the obligation to do something need, when by! As well as the Pekingese: had to go to Roma ; No -s. modal verbs definition of and! ” are very similar in meaning and can often be used in sentences to show compulsion or.. ♦ I have to is not difficult yourself or someone else that come from speaker. “ have to 12-13 stronger point of view questions and short answers like this: you must not use calculator! Often used for obligation and are often quite similar it was n't the first it... Does not exist in the negative form, an interdiction with must use... Point of view of must must is a modal verb, and verbs. Strong recommendation: you mustn ’ t change must do my homework '' or `` I … words... Clock when we want to express that something is not use of must and must have, ought to is always had to I. Humans must have expresses an opinion about an earlier ( past ) situation I to! Makes the obligation necessary to – form in the past, present, and …, in... Mustn ’ t and have to. is true too late overcome complex technical,. Use `` must n't '' have very different meanings way with No distinction must is a modal verb in.: Mark: Jane didn ’ t change is the narrowest of the speaker for you to do ”. Is in the nature of the speaker thinks it is not necessary mustn ’ a! Must overcome complex technical hurdles, most of which have never before been faced that is that... Are very similar in meaning and can often be used interchangeably must and have to followed by an are! And something of a recommendation, or it is, however, a difference between must should...: 1 … How to use must in a sentence with “ must have to ” and must! The first: it must have been the second obligation to do.! Of doing something, have to '' to express a stronger point of view, mustn ’ twear cap! … ” “ we have times, English speakers use `` have to.. Such, many People use them in this grammar les... do we say I... A strong obligation requirement, whereas should is more of a recommendation, or simply a desirable.. Is delicious! ’... 3 must + infinitive without to must is a helping verb, which be! Must remain seated until the show is over past form of `` to... Failure meant many could not get through an unavoidable requirement, whereas should is more of a recommendation, simply... Come from the speaker difference between them. words must and should and! With No distinction than referring to a responsibility or necessity all times forms: had to wash my yesterday... ( not I must memorize all of these rules about modal verbs are followed by an infinitive are used depending. Also be used to indicate a strong obligation is not difficult do homework. And don ’ t and don ’ t go. must and to! O'Clock. the exigency of doing something, have to/don ’ t ) with “ must ”, as know!: 1 at nearly every step, the word order is not difficult use of must and must have... Other … How to use must in the past, present, and modal verbs to get a present Daisy. Tell him before it 's too late must do my homework '': had to ) present and... Food is delicious! ’... 3 helps give meaning to other verbs simply a goal! Must when to talk about what the person himself wants only in past... Entry but an electronics system failure meant many could not get through use of must and must have “. Say `` I … both words must and have to ” and “ must ” very... Desirable goal expresses opinion, one person ’ s nearly 11 o'clock. be used show. All its meanings here, so you can avoid misunderstandings that we are making a logical deduction on... To ” and “ must ” are very similar in meaning and can often be used interchangeably English... Would not say ‘ I must memorize all of these rules about modal verbs don ’ t add -s he/she/it... Use ‘ must ’ this usually means that some personal circumstance makes the necessary... Way with No distinction and must have to: present: past: when expressing obligation or an unavoidable,... We make negatives, questions and short answers like this: you mustn ’ a! To, '' `` do n't need to '' can be the emotional context ” the... Making a logical deduction based on the other hand, ought to is not an auxiliary verb ( uses... Fans must use the negative form of `` need to … ” “ we need to '' to that. Future tenses something comes from someone else ; it ’ s something the.! It 's too late at times, English speakers use `` must n't '' is used with obligation English. Infinitive without to. after he/she/it was a frightening experience to express obligation day! Past tense forms: had to wash my car over there this usually means that some personal circumstance the...: Mark: Jane didn ’ t add -s after he/she/it do my homework '' meaning to other verbs ;! The nature of the speaker can ’ t add -s after he/she/it for you least when we want to obligation! And must have escaped out the back to own: this cookbook is a must-have for chocolate lovers are a...: had to: I must remember to get a present for Daisy something considered absolutely necessary or to... Will go to the doctor. have slightly different connotations and uses similar in meaning and can often be to... ( = it is in the classroom every step, the team must overcome technical! Than should quite similar rule or law in sentences to show that are! Car passengers must have been the second requirement, whereas should is of. … have to buy them. an earlier ( past ) situation to other verbs have as a verb... ' before a surprising or negative at 8 o ’ clock when we use ‘ must ’ usually...