Use

We use yes/no questions to ask for information and check for understanding. We generally answer ‘yes’ or ‘no’.

Example:

Does Tom learn Polish?

Explanation:

The verb do is used to form a question. The speaker wants to know if Tom learn Polish.

How to build

To form a yes/no question with most present simple verbs, we use this structure:

Do/Does + subject (you/he/she/it/they) + base form of the verb:

• Do you like apples? Yes, I do. / No, I don’t.

• Does she/he/it like apples? Yes, she does. / No, she doesn’t.

• Do they like apples? Yes, they do. / No, they don’t.

To form a yes/no question in the past simple tense, we use this structure:

Did + subject + base form of the verb:

• Did you see Tom yesterday? Yes, she did. / No, she didn’t.

• Did she/he/it Tom yesterday? Yes, she did. / No, she didn’t.

• Did they see Tom yesterday? Yes, they did. / No, the didn’t.