However, although it is used in negative statements, the statement can still have a positive meaning. For example:

Here, the speaker is expressing how much they think Miles would be good for the job; they can recommend him with no hesitation. Here's another example:

Note that “at all” can sometimes be used in the middle of a statement instead of at the end.

The only place it cannot go is at the beginning of a sentence.

Questions

The other main way of using “at all” is in questions. Just like above, it adds emphasis. For example:

This is a basic question. The following example, however, sounds stronger.

This stronger question includes a nuance of surprise; the speaker is looking for confirmation that their friend really bought nothing.

Here is another pair of questions to compare:

Again, the second example is more intense. The nuance is that the speaker wants or needs information badly, even if it's only something small.

Responses

“At all” can also be used as a response to a question. This usage confirms something that was previously said.

You need to use it along with a negative word, which depends on what you are responding to.

A

Did you have trouble finding our house?

B

Not at all. / None at all.

= I didn't have any trouble.

A

You didn’t buy anything from the store?

B

Nothing at all.

= I didn't buy anything.

A

Do you mind if I sit here?

B

Not at all.

= I don't mind. / Please sit!