1. i haven't cleaned
2. they haven't started
3. I haven't done
4. He hasn't won
5. haven't seen
6. i haven't invited
7. he hasn't washed
8. we haven't tydied
9. i haven't finished
10. i haven't visited
11. we haven't seen
12. hasn't taken
13. hasn't played
5.
1.since
2. for
3. for
4.since
5.since
6.since