How do you ask for permission in English?

The everyday questions are Can I + verb and Could I + verb: Can I sit here? Could I leave a message? Use May I in formal or official situations: May I come in? When you are checking the other person's comfort rather than a rule, use Is it all right if I... or Do you mind if I...

What is the difference between can I and could I?

Both ask for permission now. Could I is more polite because could is the remote form of can. It is not a past-tense question. Use can I with people you know well, and could I as the default with strangers, staff, and anyone whose space or time you are entering.

When should I use may I?

When the setting is formal: a desk, a gate, a letter, a classroom rule. May I speak to the treasurer? and May we photograph the exhibits? fit that register. In casual speech, could I has largely replaced may I, and Can I come in to a flatmate is more natural than May I.

How do I answer Do you mind if I...?

If you are happy, say No, not at all or No, go ahead, because you do not mind. If you are not happy, say I'd rather you didn't or I'm afraid that doesn't work, rather than a bald Yes, which is easy to mishear. The word mind means object, so the polarity of yes and no is the opposite of Can I.

Is could I the past of can I?

Not in this use. Could I leave the kiln on is a polite present question. Past permission is I was allowed to leave the kiln on or, for a general past freedom, I could use the kiln whenever I wanted. For a specific past event, was allowed to is clearer than could.

English grammar · Beginner

Asking for Permission: Can, Could, May, and Do You Mind

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

English asks for permission with modal verbs and a few fixed phrases: can and could for everyday requests, may for formal ones, and is it all right if or do you mind if when you want a softer, more personal formula. The grammar is the same as other modal questions (modal + subject + bare infinitive), but the choice of form signals how polite or official the request is. Could here is about present politeness, not past time.

Could I leave the kiln on overnight?

could + I + bare verb: polite present permission, not past

What it is

Asking for permission means checking that an action is allowed before you do it. English has a small ladder of forms. Can I is the everyday question (Can I use this glaze?). Could I is the same question with more distance and so more politeness (Could I leave a message?). May I is the formal, often institutional choice (May I come in?). Alongside the modals sit two clause patterns: Is it all right if I... and Do you mind if I..., which ask the other person's feeling rather than a rule. The answer is usually yes, of course, go ahead, or a soft refusal, not a grammar drill.

“Could I borrow the spare key?” “Yes, of course. It's on the hook.” (Could I + bare verb; the reply gives permission and adds the practical detail.)

How to spot it

Look for a first-person question with can, could, or may, or for is it all right if / is it OK if / do you mind if followed by a clause. If the subject is you (Can you help me?), you are looking at a request for action, not a request for permission.

Can I sit in the front row? (can I: informal, spoken permission)
Could we store the frames in the annex overnight? (could we: more polite, still present)
May I speak to the treasurer? (may I: formal, often to an official)
Do you mind if I open a window? (do you mind if + present, checking the other person)

Could in this use is not the past of can. Past permission is a different pattern (I could stay out late when I was sixteen, or I was allowed to). This page stays in the present: you are asking now about an action now or soon.

Asking for Permission Quick Reference

Ways to ask for permission, from informal to careful

Form	Typical use	Example
Can I / we + verb	friends, family, informal work	Can I use your charger?
Could I / we + verb	polite default with strangers	Could I leave the kiln on?
May I / we + verb	formal, official, careful writing	May I come in?
Is it all right if I...	soft, checking the situation	Is it all right if I sit here?
Is it OK if I...	informal version of all right if	Is it OK if I take a photo?
Do you mind if I + present	checking the other person's comfort	Do you mind if I open a window?
Would you mind if I + past	more distant, extra-polite	Would you mind if I opened a window?
Would you mind + -ing	permission or a small request	Would you mind waiting in the foyer?

Common Asking for Permission Examples in English

Permission questions grouped by how direct they are, which is what the choice of form is really for:

Everyday Can and Could

Can I leave my cello in the wings?: can I: informal, among colleagues
Could I have a word after the rehearsal?: could I: polite, still a small ask
Can we use the side door after ten?: can we: permission for a group
Could I take this chair, or is it reserved?: could I plus an extra check

With people you know, can I is warm rather than rude. With people you do not know, could I is the safer default.

Formal May

May I come in?: the classic formal knock-at-the-door question
May we photograph the exhibits?: may we: institutional rule, not a favour
May I see your pass, please?: may I from the person in authority, still polite
Students may not use the kiln without a tutor.: may not as a formal prohibition, not a question

May for permission is more common in signs, rules, and careful speech than in casual conversation, where could has taken most of its job.

Is It All Right If and Do You Mind If

Is it all right if I plug in a laptop here?: is it all right if + present simple
Is it OK if we start without the chair?: informal OK if, same pattern
Do you mind if I close the kiln door?: do you mind if + present, expecting no
Would you mind if I closed the kiln door?: would you mind if + past, extra distance

Do you mind if I... expects the answer No (I don't mind). Yes to that question is a refusal, which is why learners trip on it.

Asking About a Rule, Not a Person

Are we allowed to take coats into the gallery?: be allowed to for a regulation
Is it permitted to film the recital?: permitted: formal, often on notices
Can you park on this quay at night?: can you here means is it allowed, not ability
Do visitors have to sign in at the desk?: have to asking about obligation, the other side of permission

When no particular person is granting the permission, be allowed to and can for rules are more natural than may I.

How Permission Questions Work

One modal pattern, two if-clause patterns, and a politeness ladder rather than a tense change.

Modal + Subject + Bare Infinitive

Can I, could I, and may I invert like any other modal question. There is no do, and the main verb stays bare: Can I sit here, not Can I to sit or Do I can sit. The subject is almost always I or we, because you are asking about your own action. Can you sit here is a different question (ability, or a request that the other person sit).

Could I leave a message for the treasurer?

could + I + leave, no to and no do

Can/Could/May + I + bare verb.

Could Is Polite Present, Not Past

In permission questions, could is the remote, polite partner of can, the same way Could you pass the salt is a polite request. It does not mean Was I allowed. Past permission uses could in statements about general past freedom (When I was a child I could stay up) or was/were allowed to for a specific event. Mixing those up is the main reason this page is not the same as a general page on could.

Could I use the spare glaze this afternoon?

present polite ask, afternoon still ahead

Could I = polite now, not past permission.

If-Patterns Keep Statement Order Inside

After is it all right if and do you mind if, the inner clause is not a question: Is it all right if I sit here, not if can I sit or if do I sit. Do you mind if takes a present tense (Do you mind if I open...). Would you mind if takes a past tense that is hypothetical, not past time (Would you mind if I opened...). Would you mind + -ing has no if-clause at all (Would you mind opening the window).

Do you mind if I open a window?

if + I + present, no inversion inside

If I + statement order. Would you mind if I + past.

Match the Form to the Relationship

The grammar is easy; the social choice is the real lesson. Can I is right with people who already like you. Could I is the default with staff, strangers, and anyone whose time you are taking. May I fits desks, gates, and formal writing. Is it all right if and do you mind if are good when the permission is really about not inconveniencing someone, not about a written rule.

May I speak to the person in charge of the kiln bookings?

may I to an official, not can I in this setting

Can with friends, could as default, may with officials.

Common Mistakes with Asking for Permission

Incorrect: Can I to sit here?

Correct: Can I sit here?

Modals take a bare infinitive. To after can, could, or may is the most common extra word in this pattern.

Incorrect: Do you mind if I will open a window?

Correct: Do you mind if I open a window?

After if in this formula the verb is present simple, not will. Would you mind if I opened a window is the extra-polite version, with a past form that is not past time.

Incorrect: “Do you mind if I sit here?” “Yes.” (meaning permission)

Correct: “Do you mind if I sit here?” “No, not at all.”

Mind means object. Yes answers the question Do you object and so refuses. To give permission, say No, not at all or No, go ahead.

Incorrect: Could I used the spare glaze yesterday?

Correct: Was I allowed to use the spare glaze yesterday?

Could I is not a past-permission question. For a specific past event, use was/were allowed to or Did they let me. Could I used also doubles the past marking, which no modal allows.

Giving and Refusing Permission

The question is only half of the exchange. The replies have their own small grammar.

Saying yes

Yes, of course, Sure, Go ahead, Feel free, and That's fine are the unmarked grants. Echoing the modal is possible (Yes, you can. Yes, you may.) and sounds a little more official. After do you mind if, the natural yes-grant is No, not at all or No, I don't mind.

“Could I leave this crate here?” “Yes, of course.”: of course as a warm grant
“Can I use the spare glaze?” “Go ahead.”: go ahead telling the person to act
“Do you mind if I sit here?” “No, not at all.”: no = I do not mind = permission

Yes after Do you mind if I... is easily heard as a refusal, so native speakers avoid it or add I do mind.

Saying no without a fight

A bald No, you can't is possible but sharp. Soften with I'm afraid..., I'd rather you didn't, Not just now, or a reason. I'd rather you didn't takes a past form that is not past time. Must not and may not belong on signs and in rules more than in a spoken refusal to a friend.

I'm afraid the kiln is booked until Thursday.: refusal with a reason, no modal needed
I'd rather you didn't leave bags in the aisle.: would rather you didn't + past, polite block
You can't take coats into the gallery, I'm afraid.: can't for a rule, softened with I'm afraid

Offer an alternative if you can: Not here, but the foyer is fine.

Mind and the expected answer

Mind means object. Do you mind if I open a window is asking whether you object. No, I don't mind grants permission. Yes, I do mind withholds it. Learners who treat mind as a friendly yes-word reverse the polarity.

“Do you mind if I take a photo?” “No, go ahead.”: no = no objection
“Would you mind if I opened this?” “I'd rather you didn't.”: refusal that avoids a bare yes
“Do you mind my sitting here?” “Not at all.”: my + -ing, more formal than if I sit

Do you mind my -ing and Do you mind me -ing both occur; my is the more traditional form.

Quick Check: Asking for Permission

Write a permission question for each situation, using the form in brackets.

1. You want to use a colleague's charger. (can I, informal)

Answer: Can I use your charger?

can + I + bare verb

2. You want to leave a kiln on overnight, speaking to a tutor. (could I)

Answer: Could I leave the kiln on overnight?

could for polite present, not past

3. You knock on an office door. (may I)

Answer: May I come in?

may I as the formal formula

4. You want to open a window in a shared room. (do you mind if)

Answer: Do you mind if I open a window?

if + present, statement order

5. Someone asks Do you mind if I sit here and you agree. (reply)

Answer: No, not at all. / No, go ahead.

no = I do not mind = permission

Asking for Permission FAQs

How do you ask for permission in English?: The everyday questions are Can I + verb and Could I + verb: Can I sit here? Could I leave a message? Use May I in formal or official situations: May I come in? When you are checking the other person's comfort rather than a rule, use Is it all right if I... or Do you mind if I...
What is the difference between can I and could I?: Both ask for permission now. Could I is more polite because could is the remote form of can. It is not a past-tense question. Use can I with people you know well, and could I as the default with strangers, staff, and anyone whose space or time you are entering.
When should I use may I?: When the setting is formal: a desk, a gate, a letter, a classroom rule. May I speak to the treasurer? and May we photograph the exhibits? fit that register. In casual speech, could I has largely replaced may I, and Can I come in to a flatmate is more natural than May I.
How do I answer Do you mind if I...?: If you are happy, say No, not at all or No, go ahead, because you do not mind. If you are not happy, say I'd rather you didn't or I'm afraid that doesn't work, rather than a bald Yes, which is easy to mishear. The word mind means object, so the polarity of yes and no is the opposite of Can I.
Is could I the past of can I?: Not in this use. Could I leave the kiln on is a polite present question. Past permission is I was allowed to leave the kiln on or, for a general past freedom, I could use the kiln whenever I wanted. For a specific past event, was allowed to is clearer than could.