What is the difference between have to and have got to?

In the present they mean the same obligation: I have to leave and I've got to leave. Have got to is mainly British and mainly spoken, and it inverts have in questions (Have you got to leave?). Have to is used in all varieties and in all tenses (has to, had to, will have to), so for yesterday and tomorrow you use had to and will have to, not a got form.

How do I make questions with have to?

Use do, does, or did, then the subject, then have to plus a base verb: Do we have to bring scores? Does she have to be there by six? Did you have to show the letter? If you are using British have got to, skip do and invert have: Have we got to bring scores? Have we to wait is not the modern question for either pattern.

What is the difference between don't have to and must not?

Don't have to means the action is not necessary: You don't have to bring scores; extras are on the stands. Must not means the action is forbidden: You must not stack chairs on the wet tiles. Swapping them reverses the message. Haven't got to follows don't have to (no need), not must not (ban).

Is have to the same as must?

They often overlap in the present, but the flavour differs. Have to tends to report an outside rule or situation (I have to renew my visa). Must tends to report the speaker's own rule or a strong inner need (You must sign before you leave; I'm collecting the forms). For the past, both meanings usually become had to. Must have plus a participle is a guess about the past, not past obligation.

English grammar · Beginner

Have To and Have Got To: Obligation That Is Not a Modal

Written by Eleanor Whitfield, Lead English Curriculum Editor · Reviewed September 2026

Have to and have got to express obligation that comes from a rule, a timetable, or a situation, not from the speaker's own authority. Have to conjugates like an ordinary verb (have to, has to, had to, will have to) and uses do in questions and negatives. Have got to is a British present-tense variant (I've got to go) that inverts have and is not used for past or future. Neither form is a true modal; true modals such as must do not take do, to, or tense endings.

I have to renew my visa by Friday, so I've got to collect the form from the annex.

have to for outside obligation; have got to as the British present equivalent

What it is

Must is a true modal: it never changes form, never takes to, and never uses do (She must sign. Must she sign?). Have to does the same job of obligation with the grammar of an ordinary verb. It takes to, it changes for person and tense (has to, had to, will have to), and it uses do in questions and negatives (Do we have to bring our own scores?). That is why the answer to is have a modal verb is no, even though have to sits in every list of obligation forms. Have got to is a spoken British present meaning the same as have to right now: I've got to be at the studio by six. It looks like possession have got, but a verb follows, not a noun.

She has to be at the studio by six. Does she have to bring her own scores? She's got to leave now. (Ordinary-verb have to; British have got to in the present.)

How to spot it

Look for have/has/had plus to plus a base verb. If a noun follows got (I've got a spare key), you have possession, not obligation. If do/does/did appears (Do we have to wait?), you have have to, not a modal. If have inverts (Have we got to wait?), you have British have got to.

I have to renew my visa by Friday. (outside deadline, present have to)
She has to be at the studio by six. (has to with he/she/it)
Do we have to bring our own scores? (question with do, not inversion of have)
We've got to catch the later ferry. (british present: have got to plus a verb)

Must not means prohibition (You must not stack chairs on wet tiles). Do not have to means there is no obligation (You don't have to bring scores; extras are on the stands). The negatives are not interchangeable.

Have To and Have Got To Quick Reference

Have to across person and tense

Time	Affirmative	Negative / question
Present, I/you/we/they	I have to wait.	I don't have to wait. Do you have to wait?
Present, he/she/it	She has to wait.	She doesn't have to wait. Does she have to wait?
Past, all persons	We had to wait.	We didn't have to wait. Did you have to wait?
Future	You'll have to wait.	You won't have to wait. Will we have to wait?
British present, have got to	I've got to wait.	I haven't got to wait. Have you got to wait?
True modal must, for comparison	She must wait.	She must not wait. Must she wait?

Common Have To and Have Got To Examples in English

Obligation from outside the speaker, grouped by form, so have to is not confused with possession or with must:

Have To, Has To, Had To, Will Have To

I have to renew my visa by Friday.: present obligation from a rule
The kiln has to cool before anyone opens it.: has to with a singular subject
We had to take the later crossing after the rehearsal.: past: had to, all persons
You'll have to collect the form from the annex.: future obligation, will have to

Had to is the usual past of both have to and must. Must has no past form of its own in this meaning.

Questions and Negatives with Do

Do we have to bring our own scores?: do plus have to, present
Does she have to be at the studio by six?: does with he/she/it
You don't have to wait; the trustee has already signed.: don't have to: no obligation
Did you have to show the letter at the desk?: did plus have to, past

Because have to is not a modal, do carries the tense and the person. Have we to wait is old-fashioned and not the modern question.

Have Got To (British Present)

I've got to be at the studio by six.: spoken British present obligation
She's got to leave before the foyer is locked.: has got to with he/she/it
Have we got to bring our own stands?: have inverts; no do
I haven't got to stay for the encore.: negative with haven't got to

Have got to has no comfortable past or future. Use had to and will have to instead. American English prefers have to in all of these sentences.

Outside Rules vs Speaker Authority

You have to wear a pass in the annex; it's a site rule.: have to: the situation or the rule requires it
You must wear a pass in the annex; I'm the duty manager.: must: the speaker is laying down the rule
I have to leave at five; the last bus is at ten past.: the timetable forces the leaving
I must leave at five; I want to walk the quarry path in the light.: must: the speaker's own insistence

In speech the two often overlap. In careful teaching, have to reports an outside need and must reports the speaker's own rule or strong personal necessity.

How Have To Works

Ordinary-verb grammar doing a modal's job, plus the British present with got.

Have To Is Not a True Modal

True modals (must, can, might, should) have one form, take a bare verb, and invert for questions. Have to breaks all three tests: it has has/had/will have, it keeps to, and it uses do. Treat it as a two-word verb of obligation, not as a member of the modal club. The wider obligation set (must, should, ought to, need to) lives on the modals of obligation page.

She has to sign. She must sign. Does she have to sign? Must she sign?

have to takes -s and do; must takes neither

If do appears, it is not a modal.

Conjugate Have, Keep To plus the Base Verb

Only have changes: I have to, she has to, we had to, they will have to. To stays, and the next verb stays in the base form. There is no having to in simple statements of obligation (She is having to wait is rare and sounds like a temporary struggle, not the basic rule).

He has to collect the form. We had to collect it yesterday. We'll have to collect it again in March.

has, had, will have: to collect never changes

Change have; leave to plus base verb.

Questions and Negatives Borrow Do

Present and past have to behave like any other ordinary verb: do/does/did take the tense, and have returns to its base form. Don't have to means the action is optional, not forbidden. For prohibition, use must not or can't, not don't have to.

Do we have to wait? We don't have to wait; extras are on the stands.

do-question; negative of obligation, not a ban

Do for questions; don't have to = optional.

Have Got To Is Present and Mainly British

I've got to go means I have to go, in a spoken British present. Questions invert have (Have you got to go?) and negatives use haven't got to. Do not use it for yesterday or next week: I had got to go and I'll have got to go are not the standard forms. Possession I've got a spare key is a different pattern and has its own page.

We've got to catch the later ferry. Have we got to bring tickets?

got to plus a verb: obligation, not possession

Got to + verb = British present obligation.

Common Mistakes with Have To and Have Got To

Incorrect: Do we have got to bring our own stands?

Correct: Have we got to bring our own stands?

Have got to already has have as an auxiliary, so the question inverts have and does not add do. Do we have to bring our own stands is the have to version and is also correct.

Incorrect: She must to renew her visa by Friday.

Correct: She has to renew her visa by Friday.

Must takes a bare verb (must renew), not to. Have to is the form that keeps to. Mixing them produces must to, which is not English.

Incorrect: You don't have to walk on the wet tiles; you'll slip.

Correct: You mustn't walk on the wet tiles; you'll slip.

Don't have to removes obligation (it is optional). The speaker here is banning the action, so must not or can't is the right negative. Don't have to walk would mean you are free not to walk there.

Incorrect: I had got to take the later ferry yesterday.

Correct: I had to take the later ferry yesterday.

Have got to does not form a standard past with had got to in this meaning. The past of both have to and have got to is had to.

Have To across Persons

Full forms of have to with wait. In speech, have to often sounds like hafta, and have got to contracts: I've got to, she's got to, we haven't got to.

Present: have to / has to

Have with I, you, we, they; has with he, she, it. Questions and negatives use do / does, not inversion of have.

Pronoun	Affirmative	Negative	Question
I	have to wait	do not have to wait	Do I have to wait?
you	have to wait	do not have to wait	Do you have to wait?
he / she / it	has to wait	does not have to wait	Does she have to wait?
we	have to wait	do not have to wait	Do we have to wait?
they	have to wait	do not have to wait	Do they have to wait?

Contractions: I don't have to wait, she doesn't have to wait. Have I to wait is not modern English.

Past: had to

Had to for every person. Did carries the question and the negative; had returns to have in those forms.

Pronoun	Affirmative	Negative	Question
I	had to wait	did not have to wait	Did I have to wait?
you	had to wait	did not have to wait	Did you have to wait?
he / she / it	had to wait	did not have to wait	Did she have to wait?
we	had to wait	did not have to wait	Did we have to wait?
they	had to wait	did not have to wait	Did they have to wait?

Contractions: I didn't have to wait. Had to is also the past of must: I must leave now. I had to leave at five.

Have Got To, and Must vs Have To

The British present, the missing past of must, and the negative that learners swap.

Have got to stays in the present

Use have got to for a present need, mostly in speech and mostly in British English. Switch to had to and will have to as soon as the time leaves now.

I've got to be at the studio by six.: present, spoken British
I had to be at the studio by six yesterday.: past: had to, not had got to
I'll have to be there by six tomorrow as well.: future: will have to

Gotta in writing (I gotta go) is a spelling of the same spoken reduction. It is informal and not for careful work.

Must vs have to

Must often marks the speaker's own rule or a strong inner need. Have to often marks a rule, timetable, or situation outside the speaker. In many contexts they overlap, and had to serves as the past of both.

You must sign before you leave; I'm collecting the forms.: speaker laying down the rule
You have to sign before you leave; the desk won't take an unsigned form.: outside procedure
I had to sign before they would give me the key.: past of either meaning

Must have signed is a deduction about the past (I am sure she signed), not obligation. Past obligation is had to.

Don't have to is not must not

Don't have to = it is not necessary. Must not (mustn't) = it is forbidden. Can't often covers the same ban in speech.

You don't have to bring scores; extras are on the stands.: optional
You must not stack chairs on the wet tiles.: forbidden
You can't stack chairs on the wet tiles; they'll split.: spoken ban, same job as must not

Haven't got to follows don't have to, not must not: I haven't got to stay means I can leave, not I am banned from staying.

Quick Check: Have To and Have Got To

Complete each sentence with the right have to / have got to form.

1. She ___ (have to) be at the studio by six every Thursday.

Answer: has to

third person present of have to

2. ___ we ___ bring our own scores? (have to, present question)

Answer: Do we have to

do-question, not inversion of have

3. You ___ (not / have to) wait; the trustee has already signed.

Answer: don't have to / do not have to

no obligation, not a ban

4. We ___ (have to) take the later crossing after the rehearsal last night.

Answer: had to

past obligation for all persons

5. I've ___ catch the dawn ferry, or I'll miss the quarry path in the light. (British present)

Answer: got to

have got to plus a base verb

Have To and Have Got To FAQs

Is have a modal verb?: No. Have to expresses obligation, which is a modal meaning, but it does not follow modal grammar. It takes to, it changes to has and had, and it uses do in questions: Do we have to wait? A true modal such as must never does those three things: Must we wait? Have on its own (I have a spare key) is an ordinary verb of possession, not a modal either.
What is the difference between have to and have got to?: In the present they mean the same obligation: I have to leave and I've got to leave. Have got to is mainly British and mainly spoken, and it inverts have in questions (Have you got to leave?). Have to is used in all varieties and in all tenses (has to, had to, will have to), so for yesterday and tomorrow you use had to and will have to, not a got form.
How do I make questions with have to?: Use do, does, or did, then the subject, then have to plus a base verb: Do we have to bring scores? Does she have to be there by six? Did you have to show the letter? If you are using British have got to, skip do and invert have: Have we got to bring scores? Have we to wait is not the modern question for either pattern.
What is the difference between don't have to and must not?: Don't have to means the action is not necessary: You don't have to bring scores; extras are on the stands. Must not means the action is forbidden: You must not stack chairs on the wet tiles. Swapping them reverses the message. Haven't got to follows don't have to (no need), not must not (ban).
Is have to the same as must?: They often overlap in the present, but the flavour differs. Have to tends to report an outside rule or situation (I have to renew my visa). Must tends to report the speaker's own rule or a strong inner need (You must sign before you leave; I'm collecting the forms). For the past, both meanings usually become had to. Must have plus a participle is a guess about the past, not past obligation.