CONDTIONAL SENTENCES

Conditional sentences (type 1)

Form: If + S + V (present simple), S + will/can/may… + V
V + …. If S + V (present tense)
Omit IF: (A) Should + S + V, S + will/can…+ V
(P) Get + S + PIII and S + will/can… + V
(+) V+…. + and + S + will/can… + V
(-) V + … + or + S + will/can…+ V
Unless = If….not
Give correct form of verb
1. If you (find)………………………. a skeleton in the cellar don't mention it to anyone.
2. If you pass your examination we (have) ………………….a celebration.
3. What (happen) …………………….if I press this button?
4. If you go to Paris where you (stay)………………………….?
5. The flight may be cancelled if the fog (get)………………….. thick.
6. If the milkman (come)……………………, tell him to leave two pints.
7. Someone (sit)……………………. on your glasses if you leave them there.
8. What I (do)………………….. if I hear the burglar alarm?
9. Unless they turn that radio off I (go) ……………………mad.
10. We'll have a long way to walk if we (run)…………………. out of petrol here.
11. If you shake that bottle of port it (not be) ………………….fit to drink.
12. I'll probably get lost unless he (come) …………………with me.
13. If she (leave)……………… the fish there the car will get it.
14. You'll get pneumonia if you (not change) ………………..your wet clothes.
15. Dial 999 if you (want) ………………….Police, Ambulance, or Fire Brigade.
Conditional sentences (type 2)
Form: If + S + V (past simple)/were, S + would/could/might + V
Omit If: Were + S + to + V, S + would/could/might + V
Had + S +…., S + would/could… + V
Eg: Were you to find walking difficult, you could try the easy way.
Give correct form of verb
1. If anyone attacked me, my dog (jump)………………….. at his throat.
2. If he were in he (answer)………………………. the phone.
3. If I had a typewriter I (type)…………………………… it myself.
4. If I (know)…………………………….. his address I'd give it to you.
5. He (look)…………………… a lot better if he shaved more often.
6. If you (play) ………………..for lower stakes you wouldn't lose so much.
7. If he worked more slowly he (not make)…………………. so many mistakes.
8. I shouldn't drink that wine if I (be)………………….you.
9. More tourists would come to this country if it (have)…………………. a better climate.
10. If I were sent to prison you (visit)…………………………….. me?
11. If someone (give)…………………….. you a helicopter what would you do with it?
12. I (buy)…………………. shares in that company if I had some money.
13. If he (clean)……………………. his windscreen he'd be able to see where he was going.
14. If you drove your car into the river you (be able) …………………….to get out?
15. If you (not belong)………………….. to a union you couldn't get a job.
Conditional sentences type 3
Form: If + S + had + PII, S + would/could…+ have + PII
Omit If: Had + S (not) + PII, S + would/could + have + PII
= If it hadn’t been for + Ving/Nphrase , S + would/could… + have +PII
= But for + Ving/Nphrase , S + would/could… + have +PII

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Usage: It is impossible that the condition will be fulfilled because it refers to the past.
Give correct form of verb
1 If I had known that you were in hospital I (visit)…………………….. you.
2 The ground was very soft. But for that, my horse (win)……………………...
3 If you (arrive) ……….……….ten minutes earlier you would have got a seat.
4 You would have seen my garden at its best if you (be) ………………………..here last week.
5 But for his quickness I (be) …………………………killed.
6 I shouldn't have believed it if I (not see) ……………………….it with my own eyes.
7 If he had slipped he (fall)……………..……….. 500 metres.
8 If he had asked you, you (accept)………………………….?
9 If I (had) ………………….a map I would have been all right.
10 If I (know)…………………. that you were coming I'd have baked a cake.
11 I (offer) …………………to help him if I had realized that he was ill.
12 If you had left that wasp alone it (not sting)…………….…………. you.
13 If I (realize) ………………….what a bad driver you were I wouldn't have come with you.
14 If I had realized that the traffic lights were red I (stop)…………….……...
15 But for the fog we (reach) ……………….……..our destination ages ago.
III. Give the correct form of verbs in brackets
1) If I (know)……………….. that you were ill, I (go)…………………. to see you.
2) If she'd had enough, She (buy) ……………………a car.
3) I (buy) ……………………..a car if you lend me some money.
4) I (see) ………………….him if I (go) ………………….to the party last night.
5) We could have gone out if the weather (not be) ……………………..so bad.
6) If the book (not be ) ……………………expensive, I'll buy it.
7) You would be very surprised if he (return)……………………..
8) He wanted to buy some Christmas presents but he couldn’t. If he (afford)…………….. to buy, his
children (be) ………………….very happy to greet a new year.
9) The kitchen will look better if we (have) ……………………..red curtains.
10) If I knew his address, I (go) ……………….round and see him.
11) If you (not be) …………………..so busy, I would have shown you how to play.
12) It (be) ……………….quicker if you use a computer.
13) If we have some eggs, I (make) …………………….you a cake.
14) I'll go out if it (not rain)……………………………..
15) They wouldn't come to the party if you (not invite) ………………….them
IV. Give the correct form of verbs in brackets
1. If you (need)......................, why don’t you tell me?
2. Suppose you (win)........................a lot of money, what would you do?
3. If I got up earlier, I (not be)......................late for work.
4. If I didn’t feel so tired, I (go).....................out with you.
5. If you (not pass)................. the exam, would you take it again?
6. If I (be)................. you, I would apply for the job.
7. I could repair the car if I (have)....................the right tools.
8. If I (study).....................hard, I would have passed the exam.
9. If I (not be)......................busy yesterday, I would have visited you.
10. She (go)........................to the university if she had had the opportunity.
11. Suppose they had offered her a job, do you think she (take).....................it?
12. If you do your homework now, we (go) to the cinema in the evening.
13. If we (order) the book now, we will have it tomorrow.
14. If I had more money, I (buy) a bigger car.
15. If I (meet) my favorite movie star, I would ask him for an autograph.
16. I (call) you if I need your help.
17. I would go swimming if the weather (be) better.
18. If he (not have) time tomorrow, we will meet the day after.

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 19. If I were you, I (not know) what to do.
20. If we don't order the tickets soon, there (not be) any tickets left.
V. Rewrite the sentences, using the given word
1. The war will spread everywhere if we don’t stop it.
Unless ………………………………………………………………………………
2. All our beautiful forests will be destroyed if we do nothing to preserve them.
Unless……….………………………………………………………………………
3. If he hasn’t got a ticket, they won’t let him in.
Unless ………..………………………………………………………………………
4. If it doesn’t rain, we will have no water to use.
Unless ………………………………………………………………………………
5. These flowers will die if nobody waters them.
Unless ….……………………………………………………………………….
6. Do your exercises or you will be punished?
Unless ………………………………………………………………………….
7. The war will spread everywhere if we don’t stop it.
Unless ………………………………………………………………………..…
8. All our beautiful forests will be destroyed if we do nothing to preserve them.
Unless…… ………………………………………………………………………..…….
9. If he hasn’t got a ticket, they won’t let him in.
Unless … ………………………………………………………………………..………..
10. If it doesn’t rain, we will have no water to use.
Unless … ………………………………………………………………………..………
11. These flowers will die if nobody waters them.
Unless … ………………………………………………………………………..…..
12. Do your exercises or you will be punished.
Unless ………………………………………………………………………..… ….
13. The child will die if we don’t bring him to hospital.
Unless…………………………………………………………………..
14. I’ll call the police if you don’t leave me alone!
Unless …………………………………………………………..
15. Provided that you leave an address we will be able to contact you. (Unless)
………………………………………………………………………
VII. Rewrite these sentences without changing its meaning, using the given words
1. Na doesn’t see the sight. She can’t tell you about that.
If……………………………………………………………………..
2. I don’t know her address. So I can’t answer you.
If……………………………………………………………………..
3. Today isn’t Sunday. So the pupils can’t stay at home.
If……………………………………………………………………..
4. They haven’t got a big house, so they don’t invite him.
If…………………………………………………………………….
5. My friends aren’t here, so they don’t help me.
If………………………………………………………………………
6.The letter is small. They can’t read it.
If………………………………………………………………………
11. She doesn’t take any exercise so she is overweight.
If she .........................................................................................................
VIII. Rewrite the sentences without changing its meaning, using the given words
1. If you see Peter, tell him he should be here at 8.00 . (Should)
………………………………………………………………..
2. He would have lent you his car if you’d asked him. (Had )
………………………………………………………………………..

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3. If you changed your mind, you’d be welcome to join us. (Were)
……………………………………………………………………….
4. There was such a lot of traffic; that’s why we are late.
Had…………………………………………………………………..
5. I wouldn’t have succeeded if my parents hadn’t encouraged me.
But for ............................................................................................................
6. But for Helen, the play would have been a flop.
If it ..................................................................................................................
7. If you hadn’t helped us, we would have been in trouble.
Had ..................................................................................................................
8. Without your help, I wouldn’t have found the house.
Had ..............................................................................................................
9. He had twisted his ankle so he can’t play tennis this afternoon.
Had .................................................................................................................
10. If you should happen to be passing, drop in for a cup of tea.
Should ............................................................................................................
11. If they offered you the job, would you accept ?
Were ...............................................................................................................
12. If he were not so lazy, he would be more successful.
But for ............................................................................................................
13. If we were to move north, we should be able to make a better living.
Were we ...................................................................................................
14. It’s a good thing you lent me the money or I would have had to go to the bank.
I would have had to ................................................................................
15. If you should enquire anything, give me some time to think.
Should .....................................................................................................
20. The only reason the party was a success was that a famous film star attended.
Had it not .................................................................................................
IX. Rewrite the sentences without changing its meaning
1. My brother didn’t know how to use a computer.
I wish……………………………………………………………………
2. What a pity your mother misunderstood you.
I wish……………………………………………………………………
3. I’m sorry that I haven’t time to talk to you.
I wish……………………………………………………………………
4. She wasn’t invited to the party last Sunday.
I wish……………………………………………………………………
5. My family doesn’t have a car now.
I wish……………………………………………………………………
XI. Rewrite sentences, using mixed conditional sentences
1. She isn’t at the meeting because she wasn’t told about it.
…………………………………………………………………………………………….
2. He didn’t take his job seriously. He’s unemployed now.
……………………………………………………………………………………………
3. He didn’t train every day. He won’t win the race.
……………………………………………………………………………………………
4. You didn’t warn me. Now I’m in a difficult situation.
……………………………………………………………………………………………
5. I don’t know him very well so I didn’t give him any advice.
……………………………………………………………………………………………
6. I didn’t apply for the job. I don’t want to work there.
…………………………………………………………………………………………….
7. He has a new row because she borrowed his tennis racket and lost it.