1. have done

2. have you ever been, was

3. have already sent

4. sent

5. didn't see

6. haven't seen

7. haven't received

8. went

9. have just seen

10. saw

11. have you had breakfast already?

12. when did you have breakfast?

13. when did you arrive in Kyiv?

14. fell asleep

15. have known

16. have written