cứu tớ vói:(((((((((((((((((((((((((((((((((((

1. Had started

2. Was having

3. Was

4. Was doing

5. Had to go

6. Could meet

7. Would be

8. Hadn’t seen

9. Couldn’t meet

10. Was going to be

11. Wouldn’t be

12. Would give

Reported speech:

present simple -> past simple

present continuous -> past continuous

past simple -> past perfect, past simple

present perfect -> past perfect

Can -> could 

Will -> would