Use

Negative questions show a speaker's opinion about a topic and are used when the speaker wants the listener to agre

Example:

Don't you think it's a great product?

Explanation:

The negative question 'don’t you think' shows that the speaker wants the listener to agree that ‘it’s a great product’.

How to build

To form a negative question, use the negative form of the auxiliary verb.

• Why didn’t you tell him?

• Isn’t it a beautiful Monday?

The answers to negative questions are the same as answers to regular questions.

• Can’t you fix it? Yes, I can. / No, I can’t.