Question tags are formed with the auxiliary or modal verb from the statement and the appropriate subject.
A positive statement is followed by a negative question tag.
- Jack is from Spain, isn't he?
- Mary can speak English, can't she?
A negative statement is followed by a positive question tag.
- They aren't funny, are they?
- He shouldn't say things like that, should he?
Postive sentences, with negative tags:
- She's Italian, isn't she?
- They live in London, don't they?
- We're working tomorrow, aren't we?
- It was cold yesterday, wasn't it?
- He went to the party last night, didn't he?
- We'd been working, hadn't we?
Negative sentences, with positive tags:
- We aren't late, are we?
- She doesn't have any children, does she?
- The bus isn't coming, is it?
- You weren't sleeping, were you?
- They won't be late, will they?