1. I am late, aren’t I?

2. I am not late, am I?

3. He is late, isn’t he?

4. He isn't late, is he?

5. Tom likes football, doesn’t he?

6. Tom doesn't likes football, does he?

7. It is raining, isn’t it?

8. It isn't raining, is it?

9. Tom has gone out, hasn’t he? 

10. Tom hasn't gone out, has he?

11. They were late, weren’t they?

12. They weren't late, were they?

13. She had to leave early, didn’t she?

14. She didn't have to leave early, did she?

15. You’ll be back soon, won’t you?

16. You won't be back soon, will you?

17. The children can swim, can’t they?

18. The children can't swim, can they?

19. Let’s have buttered scones with strawberry jam for tea, shall we?

20. Let us use the telephone, will you?