Put the verbs in brackets into the correct tenses. 1 If he wash my car 3 If he (eat) a 6 If he (read) in bad light, he will ruin his eyes. If she wash my car7 Someone (steal) your car if you leave it unlocked. 8 What will happen if my parachute (not open)? 9 If he (wash) my car, I'll give him $10. 10 If she (need) a radio, she can borrow mine. 11 If you (not go) away, I'll call the police. 12 I'll be very angry if he (make) any more mistakes. 13 If he (be) late, we'll go without him. 14 She will be absolutely furious if she (hear) about this. 15 If you put on the kettle, I (make) some tea. 16 If you give my dog a bone, he (bury) it. 17 If we leave the car here, it (not be) in anybody's way. 18 He'll be late for the train if he (not start) at once. 19 If you come late, they (not let) you in. 20 If he (go) on telling lies, nobody will believe a word he says. 21 Unless he (sell) more, he won't get much commission. 22 If I lend you $10, when you (repay) me? 23 We'll have to move upstairs if the river (rise) any higher. 24 If he (work) hard today, can he have a holiday tomorrow? 25 Ice (turn) to water if you heat it. 26 If the house (burn) down, we can claim compensation. 27 If you (not like) this one, I'll bring you another. 28 Unless you are more careful, you (have) an accident. 29 Tell him to ring me up if you (see) him. 30 If I tell you a secret, you (promise) not to tell it to anyone else? 31 If you (not believe) what I say, ask your mother. 32 If he (like) the house, will he buy it? 33 If you kindly sit down, I (make) enquiries for you. 34 Unless I have a quiet room, I (not be able) to do any work. 35 She won't open the door unless she (know) who it is. 36 Should you require anything else, please (ring) the bell for the attendant.

1. If he washes my car. Here, we use the present simple tense because we are talking about a habitual action or a general truth.
3. If he eats. We use the present simple tense because we are talking about a possible condition or a general truth.
6. If he reads. We use the present simple tense because we are talking about a possible condition or a general truth.
7. Someone will steal. We use the future simple tense because we are making a prediction about the future if a certain condition is not met.
8. What will happen if my parachute doesn't open? We use the future simple tense because we are talking about a possibility or an outcome in the future.
9. If he washes my car, I'll give him $10. We use the present simple tense for the condition because it is a general truth.
10. If she needs a radio, she can borrow mine. We use the present simple tense for the condition because it is a general truth.
11. If you don't go away, I'll call the police. We use the present simple tense for the condition because it is a general truth.
12. I'll be very angry if he makes any more mistakes. We use the present simple tense for the condition because it is a general truth.
13. If he is late, we'll go without him. We use the present simple tense for the condition because it is a general truth.
14. She will be absolutely furious if she hears about this. We use the present simple tense for the condition because it is a general truth.
15. If you put on the kettle, I will make some tea. We use the present simple tense for the condition because it is a general truth.
16. If you give my dog a bone, he will bury it. We use the future simple tense because we are talking about a possibility or an outcome in the future.
17. If we leave the car here, it won't be in anybody's way. We use the present simple tense for the condition because it is a general truth.
18. He'll be late for the train if he doesn't start at once. We use the future simple tense because we are talking about a possibility or an outcome in the future.
19. If you come late, they won't let you in. We use the present simple tense for the condition because it is a general truth.
20. If he goes on telling lies, nobody will believe a word he says. We use the present simple tense for the condition because it is a general truth.
21. Unless he sells more, he won't get much commission. We use the future simple tense because we are talking about a possibility or an outcome in the future.
22. If I lend you $10, when will you repay me? We use the future simple tense because we are talking about a possibility or an outcome in the future.
23. We'll have to move upstairs if the river rises any higher. We use the present simple tense for the condition because it is a general truth.
24. If he works hard today, can he have a holiday tomorrow? We use the present simple tense for the condition because it is a general truth.
25. Ice turns to water if you heat it. We use the present simple tense for the condition because it is a general truth.
26. If the house burns down, we can claim compensation. We use the present simple tense for the condition because it is a general truth.
27. If you don't like this one, I'll bring you another. We use the present simple tense for the condition because it is a general truth.
28. Unless you are more careful, you will have an accident. We use the present simple tense for the condition because it is a general truth.
29. Tell him to ring me up if you see him. We use the present simple tense for the condition because it is a general truth.
30. If I tell you a secret, will you promise not to tell it to anyone else? We use the future simple tense because we are talking about a possibility or an outcome in the future.
31. If you don't believe what I say, ask your mother. We use the present simple tense for the condition because it is a general truth.
32. If he likes the house, will he buy it? We use the present simple tense for the condition because it is a general truth.
33. If you kindly sit down, I will make enquiries for you. We use the future simple tense because we are talking about a possibility or an outcome in the future.
34. Unless I have a quiet room, I won't be able to do any work. We use the present simple tense for the condition because it is a general truth.
35. She won't open the door unless she knows who it is. We use the present simple tense for the condition because it is a general truth.
36. Should you require anything else, please ring the bell for the attendant. We use the present simple tense for the condition because it is a general truth.