First Conditional sentences
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Key for the exercises
1- If Jason saves enough money, he will buy a house.
2- If Lucy finishes the race first, she will win a gold medal.
3- If Bob cooks the books, he will go to prison.
4- If Mary sees a mouse, she will jump on a chair.
5- If Jack catches the turkey, he will cook Christmas dinner.
6- If I lose my keys, I will call a locksmith.
7- If people don’t smoke , they will live longer.
8- If we throw our waste in a bin, we will keep our world clean.
9- If Jenna spills the coffee, she will mop the floor.
10- If Harry feels cold, he will turn on the heater.
11- If Mike feels hot, he will have a cold drink.
12- If my aunt goes to the park, she will feed the pigeons.
13- If grandpa digs the garden, he will plant flowers.
14- If Gary waters the flowers, they will grow quickly.
15- If people travel in a car, they will fasten the seatbelt.
16- If Jack feels sick, he will stay in bed.
17- If I see a pickpocket, I will call the police.
18- If you change your socks daily , they won’t smell.

1st conditional: IF + PRESENT SIMPLE, WILL + infinitive
2nd conditional: IF + PAST SIMPLE, WOULD + infinitive
1. If I ___________ (see) John, I ___________ (tell) him your news.
2. You ___________ (meet) my brother if you ___________ (go) to town on Monday.
3. Meg sleeps only 5 hours a day. If she ___________ (sleep) longer, her health ___________
(improve) fast.
4. If she ___________ (want) to talk to me, she ___________ (ring up). I guess she doesn't.
5. If you ___________ (need) help, my father ___________ (help) you.
6. We ___________ (have) a picnic if the day ___________ (be) fine.
7. I ___________ (understand) Mr. Brown if he ___________ (speak) slowly.
8. If you ___________ (see) a policeman, he ___________ (show) you the way.
9. I ___________ (finish) the job tomorrow if I ___________ (can).
10. If you ___________ (give) him good meals, he ___________ (not be able) to work hard.
He would be too lazy to work then.
11. You ___________ (make) a fortune if you ___________ (take) my advice. Too bad!
12. I ___________ (not need) an umbrella if it ___________ (not rain).
13. If she ___________ (think) it over carefully, she ___________ (form) a clear opinion.
14. If they ___________ (catch) a bus now, they ___________ (arrive) at half past nine.
15. He ___________ (find) the answers if he ___________ (look) at the back of the book.
16. If I ___________ (think) that about him, I ___________ (say) so aloud.
17. If he ___________ (promise) to behave in the future, his mum ___________ (forgive) him.
18. If you ___________ (want) me to, I ___________ (come) for a walk with you.
19. If we ___________ (can) come on Sunday, we ___________ (come). I am really sorry.
20. If you ___________ (wait) for a moment, the waiter ___________ (bring) you a coffee.
21. He ___________ (lose) weight if he ___________ (stop) eating so much.
22. Life ___________ (be) monotonous if we ___________ (have) nothing to do.
23. He ___________ (not phone) me here unless it ___________ (be) urgent.
24. If they ___________ (love) each other, they ___________ (not fight) so much.
25. If she ___________ (be) patient, I ___________ (try) to explain.
26. If he ___________ (do) that again, his father ___________ (punish) him.
27. If Peter ___________ (ask) Marry, I'm sure she ___________ (marry) him.
28. She ___________ (get) fit if she ___________ (walk) every day 3 km.
29. If she ___________ (drink) this medicine, she ___________ (feel) much better.
30. He ___________ (be) very pleased if it ___________ (be) really true.
ANSWERS:
1. If I see (see) John, I will tell (tell) him your news.
2. You will meet (meet) my brother if you go (go) to town on Monday.
3. Meg sleeps only 5 hours a day. If she slept (sleep) longer, her health would improve
(improve) fast.
4. If she wanted (want) to talk to me, she would ring up (ring up). I guess she doesn't.
5. If you need (need) help, my father will help (help) you.
6. We will have (have) a picnic if the day is (be) fine.
7. I would understand (understand) Mr. Brown if he spoke (speak) slowly.
8. If you see (see) a policeman, he will show (show) you the way.
9. I will finish (finish) the job tomorrow if I can (can).
10. If you gave (give) him good meals, he wouldn't be able (not be able) to work hard.
He would be too lazy to work then.
11. You would make (make) a fortune if you took (take) my advice. Too bad!
12. I won't need (not need) an umbrella if it doesn't rain (not rain).
13. If she thinks (think) it over carefully, she will form (form) a clear opinion.
14. If they catch (catch) a bus now, they will arrive (arrive) at half past nine.
15. He will find (find) the answers if he looks (look) at the back of the book.
16. If I thought (think) that about him, I would say (say) so aloud.
17. If he promised (promise) to behave in the future, his mum would forgive (forgive) him.
18. If you want (want) me to, I will come (come) for a walk with you.
19. If we could (can) come on Sunday, we would come (come). I am really sorry.
20. If you wait (wait) for a moment, the waiter will bring (bring) you a coffee.
21. He will lose (lose) weight if he stops (stop) eating so much.
22. Life would be (be) monotonous if we had (have) nothing to do.
23. He wouldn't phone (not phone) me here unless it was (be) urgent.
24. If they loved (love) each other, they wouldn't fight (not fight) so much.
25. If she is (be) patient, I will try (try) to explain.
26. If he does (do) that again, his father will punish (punish) him.
27. If Peter asked (ask) Marry, I'm sure she would marry (marry) him.
28. She would get (get) fit if she walked (walk) every day 3 km.
29. If she drinks (drink) this medicine, she will feel (feel) much better.
30. He will be (be) very pleased if it is (be) really true.
Imagine you were the boss of a company and you caught an employee stealing money? What would you do? (a) Fire them. (b) Fire them and call the police. (c) Give them a warning. | Imagine you were the employee of a company and you saw another employee stealing money? What would you do? (a) Tell the boss. (b) Warn them not to do it again. (c) Ask them to share the money. |
Imagine you were the boss of a bank and you found out your employee was doing drugs. What would you do? (a) Not care. (b) Fire the employee. (c) Encourage the employee to stop it. | Imagine you were an employee and you had purple hair. What would you do if your boss told you to change your hair colour? (a) Pretend not to hear. (b) Change your hair colour. (c) Quit your job. |
Let’s say you could put a computer chip in your brain to give you a special talent. What talent would you want? (a) The ability to speak 5 languages. (b) The ability to play 5 musical instruments. (c) Nothing. | Let’s say you were the employee of a company and you knew your boss broke the law? What would you do? (a) Tell the police. (b) Nothing. (c) Blackmail your boss. |
Suppose you were the coach of a school football team and you were in the finals. What would you do? (a) Let all players play the same amount. (b) Let the best player play more. (c) Let only the best players play. | Suppose you were the coach of a team and a doctor said your best player should rest for two weeks. What would you do? (a) Let the player rest. (b) Make the player play. (c) Make the player play if important. |
If you were the teacher and you saw a student that you liked a lot cheating. What would you do? (a) Give them an F on the test. (b) Give them an F on the question they cheated on. (c) Give them an F for the whole course. | Suppose you were a student taking a test and you saw another student cheating. What would you do? (a) Tell the teacher. (b) Forget about it. (c) Talk to the student later. |
Say the teacher gave you extra points on a test by mistake. What would you do? (a) Show the teacher. (b) Only show your friends. (c) Show nobody. | Say your friend wrote something on the wall and you got blamed for it. What would you do? (a) Tell the teacher. (b) Say nothing and get punished. (c) Fight with your friend later. |
Say only a few people, including you, knew lots of meteors were coming towards the Earth and only one part of the globe would be not hit. What would you do? (a) Rush to this place and abandon your family to die. (b) Die bravely with your people. (c) Pretend you really had to visit that place and went there. | Say your parent were driving and crashed a car in the car park of a shopping centre. What would you do? (a) Be quiet and tell no one about that. (b) Get off the car and write a message to the absent owner. (c) Call the police to write a report immediately. |
Answers:
Complete the sentences with the correct form of the verbs.
1st CONDITIONAL If + present simple, WILL + infinitive We use the 1st Conditional for real future possibilities. If I study, I will pass the exam. | 2nd CONDITIONAL If + past simple, WOULD + infinitive We use the 2nd Conditional for future situations that are hypothetical. If I studied, I would pass the exam. | 3rd CONDITIONAL If + past perfect, WOULD + have + past participle We use the 3rd Conditional for unreal past situations. If I had studied, I would have passed the exam. |
THIRD CONDITIONAL: GAP FILLING
Fill in the blanks with the verbs in the correct form:
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1. If they ………………… (not understand) the exercise, Mrs Wells ……………………………… (explain) it again. | 2. If Tom ………………… (pay) more attention, he ………………………… (answer) the question. | 3. Sue …………………… (play) better if she ……………………………… (practise) more. | 4. Paul …………………… ………… (not drink) so much coffee if he …… ……………… (finish) the project in time. |
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5. James ………………… ……………… (not cry) if the doctor ……………… ……………………… (not give) him an injection. | 6. If it ……………………… (not rain) so much, Mary ……………………… …………………… (enjoy) her walk. | 7. Tim …………………… (not feel) so sad if his girlfriend ………………… ………………………… (not cheat) on him. | 8. If you ………………… (not eat) so much fast food, you ……………… ……………………… (not put) on weight. |
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9. If I …………………… (save) some money, I ……………………………… (go) to the beach on holiday. | 10. Pete ………………… ……………………… (not break) his leg if he ……………………………… (not fall) so badly. | 11. If Dan ………………… …………………… (drive) carefully, he …………… ……………………… (not crash) into the tree. | 12. You …………………… ……………………… (not have) a heart attack if you ……………………… (not smoke) so much. |
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13. If they ……………… ……………………… (get) up earlier, they ……… ……………………… (not miss) the school bus. | 14. I ………………………… (write) to Sam if I …… ………………… (know) his address. | 15. Harry ………………… ……………… (prepare) a good dinner if his friends …………………… (phone) in advance. | 16. If the people next door ……………………… (not make) so much noise, we ………………… (sleep) all night long. |
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17. We …………………… (not lose) our way if we ……………………… (look) at the map. | 18. Toby ………………… …………… (die) if a fireman ………………… ……… (not rescue) him. | 19. If I …………………… (buy) the food, I …… ……………………(feed) the cat. | 20. You ………………… ………… (see) the Eiffel Tower if you …………… ………… (fly) to Paris. |
1. If they HADN’T UNDERSTOOD (not understand) the exercise, Mrs Wells WOULD HAVE EXPLAINED (explain) it again. | 2. If Tom HAD PAID (pay) more attention, he WOULD HAVE ANSWERED (answer) the question. | 3. Sue WOULD HAVE PLAYED (play) better if she HAD PRACTISED (practise) more. | 4. Paul WOULDN’T HAVE DRUNK (not drink) so much coffee if he HAD FINISHED (finish) the project in time. |
5. James WOULDN’T HAVE CRIED (not cry) if the doctor HADN’T GIVEN (not give) him an injection. | 6. If it HADN’T RAINED (not rain) so much, Mary WOULD HAVE ENJOYED (enjoy) her walk. | 7. Tim WOULDN’T HAVE FELT (not feel) so sad if his girlfriend HADN’T CHEATED (not cheat) on him. | 8. If you HADN’T EATEN (not eat) so much fast food, you WOULDN’T HAVE PUT (not put) on weight. |
9. If I HAD SAVED (save) some money, I WOULD HAVE GONE (go) to the beach on holiday. | 10. Pete WOULDN’T HAVE BROKEN (not break) his leg if he HADN’T FALLEN (not fall) so badly. | 11. If Dan HAD DRIVEN (drive) carefully, he WOULDN’T HAVE CRASHED (not crash) into the tree. | 12. You WOULDN’T HAVE HAD (not have) a heart attack if you HADN’T SMOKED (not smoke) so much. |
13. If they HAD GOT (get) up earlier, they WOULDN’T HAVE MISSED (not miss) the school bus. | 14. I WOULD HAVE WRITTEN (write) to Sam if I HAD KNOWN (know) his address. | 15. Harry WOULD HAVE PREPARED (prepare) a good dinner if his friends HAD PHONED (phone) in advance. | 16. If the people next door HADN’T MADE (not make) so much noise, we WOULD HAVE SLEPT (sleep) all night long. |
17. We WOULDN’T HAVE LOST (not lose) our way if we HAD LOOKED (look) at the map. | 18. Toby WOULD HAVE DIED (die) if a fireman HADN’T RESCUED (not rescue) him. | 19. If I HAD BOUGHT (buy) the food, I WOULD HAVE FED (feed) the cat. | 20. You WOULD HAVE SEEN (see) the Eiffel Tower if you HAD FLOWN (fly) to Paris. |
Answers: