Ex. Put the verbs in brackets in the correct non-finite form. Add a preposition where necessary.
1. Nobody likes (criticise) or (laugh) at.
2. Einstein is sometimes said (fail) mathematics at school, which is not true.
3. The ninja was dressed in black to avoid (see) by his enemies.
4. It's necessary for the project (complete) by Friday.
5. I'd love (live) in Ancient China.
6. Shakespeare is thought by some (have) a ghostwriter.
7. Miss Grumble made us (study) hard. We were also made (learn) poems by heart.
8. Hugh apologised to Jill (call) her incompetent.
9. Only you can prevent forest fires (happen).
10. The man denied (be) in the victim's house that night.
11. In the end George was coerced (make) a confession.
12. Joseph Conrad is considered (be) one of the greatest masters of English prose.
13. He never admits (make) mistakes.
14. Where are you, Jack? You're supposed (work) in your office.
15. Frank was accused (steal) his great-aunt's jewellery.
16. During the scandal the politician was believed (hide) on a private island.
17. Did you see the chicken (cross) the road?
18. Would you mind (help) me (translate) this text?
19. Don't waste your time (try) to call him. His phone is always turned off.
20. The decision has been made - there's no point (discuss) it now.
KEY
1. being criticised, (being) laughed, 2. to have failed, 3. being seen, 4. to be completed, 5. to have lived, 6. to have had, 7. study, to study, 8. for calling/for having called, 9. from happening, 10. being/having been, 11. into making, 12. to be/to have been, 13. making, 14. to be working, 15. of stealing/of having stolen, 16. to be hiding, 17. cross/crossing, 18. helping, (to) translate, 19. trying, 20. discussing
