Complete with the correct forms of the verbs.
01. If you arrive early, you (have) to wait.
02. If you arrived early, you (have) to wait.
03. If you had arrived early, you (have) to wait.
04. They (help) you if they can.
05. They (help) you if they could.
06. They (help) you if they could have.
07. If you drink too much you (be) sick.
08. Unless you work hard you (not pass) your test.
09. If you stop smoking you (live) longer.
10. Practise hard and your English (improve).
11. We would have gone out if (stop) raining.
12. If I (go) away, I would have written to you.
13. If he (work) harder, he would have succeeded.
14. He not (write) unless he was lonely.
15. She would have come if you (invite) her.
16. Unless the greenhouse effect is mitigated, the seas (rise).
17. If you were older, you (be) wiser.
18. If I had known you weren't coming, I not (bake) a cake.
19. If you run, you (catch) the train.
20. If I were you, I (go) on holiday
Soluções para a tarefa
01. If you arrive early, you will have to wait.
02. If you arrived early, you would have to wait.
03. If you had arrived early, you would have had to wait.
04. They will help you if they can.
05. They would help you if they could.
06. They would've helped you if they could have.
07. If you drink too much you will be sick.
08. Unless you work hard you won't pass your test.
09. If you stop smoking you will live longer.
10. Practise hard and your English will improve.
11. We would have gone out if it had stopped raining.
12. If I had gone away, I would have written to you.
13. If he had worked harder, he would have succeeded.
14. He wouldn't write unless he was lonely.
15. She would have come if you had invited her.
16. Unless the greenhouse effect is mitigated, the seas will rise.
17. If you were older, you would be wiser.
18. If I had known you weren't coming, I not wouldn't have baked a cake.
19. If you run, you will catch the train.
20. If I were you, I would go on holiday