Tenses 1. ate 2. have been playing 3. did not drink 4. did, have 5. doesn't always stop 6. watched, wasn't 7. am watching, watch 8. have watched 9. is blowing 10. has, had 11. is knocking 12. have written 13. are, doing 14. eat 15. have you been repairing 16. are 17. aren't discussing 18. hasn't read 19. borrowed 20. are
Verified answer
Tenses1. ate
2. have been playing
3. did not drink
4. did, have
5. doesn't always stop
6. watched, wasn't
7. am watching, watch
8. have watched
9. is blowing
10. has, had
11. is knocking
12. have written
13. are, doing
14. eat
15. have you been repairing
16. are
17. aren't discussing
18. hasn't read
19. borrowed
20. are