At all

At all means ‘in any way’. We use it with questions and negatives to add emphasis, but not with affirmative statements:

Do you want to swim in the sea at all?

She was not at all frightened.

We can use at all before or after an adjective:

Were you at all upset by Kevin’s behaviour?

They weren’t interested at all.

At all and politeness

We often use at all at the end of a question to make the question sound more polite:

[ID is an abbreviation of ‘identification’]

Do you have any ID at all?

[a waiter in a restaurant]

Would you like any desserts at all?

We can use not at all as a polite response to questions asking Would you mind …? or Do you mind …? and as a polite follow-up response to thank you:

A:
Would you mind taking this parcel to the main office?.

B:
No, not at all.

A:
Do you mind if I sit here?

B:
Not at all.

A:
That’s very kind of you, thank you.

B:
Not at all.

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