5. Shall go to the post-office for you?
6. I had no idea when they would come.
7. We said we would not watch TV all day long.
8. I doubted if they would make it up.
9. Tell them again, perhaps they will understand.
10. Will they come if we invite them?
11. There will be a lot of people at the conference.
12. She says she will have to change the clock.
13. She was afraid he would feel depressed.
14. I assure you he will never tell a lie.
15. They say this firm will publish this book next year.