31. Conditions and unreal past

31.1 Read the following - note the tenses of the two verbs - and what kind of conditional each sentence is (elementary)

1. If I come, I shall see you (1).
2. You will spoil it if you aren't careful (1).
3. We would answer if we could (2).
4. They will get wet if it rains (1).
5. I would (should) be pleased if you came (2).
6. If I had known that, I should not have made a mistake (3).
7. It would have been better if you had waited (3).
8. If I were you (A) I should go home immediately. (2).
9. Will you help me if I need you? (1).
10. He would have told you if you had asked him (3).
11. They would be silly if they do not take this opportunity (2).
12. If it is fine, I shall go for a swim (1).
13. If it rained I would stay at home (2).
14. I'll help you if I can (1).
15. It would have broken if you had not caught it (3).

(A) = note the use of the subjunctive here.

31.2 Intermediate - say which of the three conditionals the following are

1. If you had done as I told you, you would have suceeded.
2. If you did as I told you, would would succeed.
3. You'll succeed if you do as I tell you.
4. If you are good, I'll give you a piece of chocolate.
5. If Maria had known English was so difficult, she would never have taken it up.
6. If the rain failed to come, there would be a famine.
7. If you eat too much you will be ill.
8. You would be ill if you ate too much.
9. If you hadn't told him, he would never have known.
10. You would catch the train if you left earlier.
11. You will pass your examination if you work hard.
12. If you had left earlier, you would have caught the train.
13. You will catch the train if you leave earlier.
14. If I'd lost my spectacles, I wouldn't have been able to read.
15. If I were an orange, I should be s pherical and juicy.

31.6 Supply a suitable tense for the verbs in brackets

1. You will be ill if you (eat) so much.
2. I (go) if I had known.
3. If my car (not break) I should have caught the train.
4. If she were she (have) more sense.
5. If you (read) that book carefully you would understand it.
6. If the children (be) good they can stay up late.
7. I (buy) that hat if it were not so dear.
8. You (kill) yourself if you always work as hard as that.
9. If they had waited they (find) me.
10. I'm sure she will do well if she (go) to the University.
11. If it (be) fine tomorrow, I shall play tennis.
12. I should't have thought it possible if I (not see) it .
13. I'm sure my sister would go out with you if you (ask) her nicely.
14. We (enjoy) the play better if it had not been so long.
15. They would do it if they (can).
16. If dinner is not ready, I (go) without you.
17. I (show) you how to do it if I knew myself.
18. If the dog had not woken us, we (never hear) the burglar.
19. Blackpool (be) ideal for a holiday, if there were not so many people there.
20. If he wants to play the violin, I (plaY) the piano for him.
21. The dog (bite) you if it had not been tied up.
22. If you don't shut that window, we all (die) of cold.
23. I shall be very angry if you (break) any more plates.
24. The child (be killed) if the train hadn't stopped quickly.
25. I would have come yesterday if I (have) nothing to do.