Помогите пожалуйста плиз плиз плиз

1. had been
2. had seen
3. hadn't met
4. had heard
5. had written
6. hadn't finished
7. hadn't had
8. hadn't gotten
9. hadn't washed
10. hadn't told
11. had mentioned
12. had come
13. had gone
14. had taken
15. had been.