This document contains exercises on conditional sentences of different types. There are exercises to complete conditional sentences by filling in the correct verb forms for type 1, 2 and 3 conditional sentences. There are also exercises that mix different types of conditional sentences. Additional exercises cover conditional sentences with auxiliary verbs and exceptions involving different tenses.

1. Exercises on Conditional Sentences Type 1 (1)
Complete the Conditional Sentences (Type I) by putting the verbs into
the correct form.
1. If you (send) ____________ this letter now, she (receive) _____________
it tomorrow.
→ If you send this letter now, she will receive it tomorrow.
2. If I (do) ____________ this test, I (improve) ____________ my English.
→ If I do this test, I will improve my English.
3. If I (find) __________ your ring, I (give) _____________ it back to you.
→ If I find your ring, I will give it back to you.
4. Peggy (go) __________ shopping if she (have) _______________ time
in the afternoon.
→ Peggy will go shopping if she has time in the afternoon.
5. Simon (go) _________ to London next week if he (get) __________ a
cheap flight.
→ Simon will go to London next week if he gets a cheap flight.

2. Exercises on Conditional Sentences Type 1 (2)
Complete the Conditional Sentences (Type I) by putting the verbs into
the correct form.
6. If her boyfriend (phone / not) ___________ today, she (leave) __________
him.
→ If her boyfriend does not phone today, she will leave him
7. If they (study / not) _____ harder, they (pass / not) _________ the exam.
→ If they do not study harder, they will not pass the exam.
8. If it (rain) ___________ tomorrow, I (have to / not) __________ water the
plants.
→ If it rains tomorrow, I will not have to water the plants.
9. You (be able / not) _________ to sleep if you (watch) _________ this
scary film.
→ You will not be able to sleep if you watch this scary film.
10. Susan (can / move / not) ______________ into the new house if it (be /
not) ___________ ready on time.
→ Susan cannot move into the new house if it is not ready on time

3. Exercise on Conditional Sentences Type 2 (1)
Complete the Conditional Sentences (Type II) by putting the verbs into the
correct form.
1. If we (have) ________ a yacht, we (sail) __________ the seven seas.
→ If we had a yacht, we would sail the seven seas.
2. If he (have) ______________ more time, he (learn) __________ karate.
→ If he had more time, he would learn karate.
3. If they (tell) __________ their father, he (be) _______ very angry.
→ If they told their father, he would be very angry.
4. She (spend) _____ a year in the USA if it (be) ______ easier to get a
green card.
→ She would spend a year in the USA if it were easier to get a green
card.
5. If I (live) _______ on a lonely island, I (run) ________ around naked all
day.
→ If I lived on a lonely island, I would run around naked all day.

4. Exercise on Conditional Sentences Type 2 (2)
Complete the Conditional Sentences (Type II) by putting the verbs into the
correct form.
6. We (help) ___________ you if we (know) _________ how.
→ We would help you if we knew how.
7. My brother (buy) ________ a sports car if he (have) __________ the
money.
→ My brother would buy a sports car if he had the money.
8. If I (feel) ___________ better, I (go) ___________ to the cinema with you.
→ If I felt better, I would go to the cinema with you.
9. If you (go) _______ by bike more often, you (be / not) __________ so
flabby.
→ If you went by bike more often, you would not be so flabby.
10. She (not / talk) ________ to you if she (be) _______ mad at you.
→ She would not talk to you if she were mad at you.

5. Exercise on Conditional Sentences Type 3 (1)
Complete the Conditional Sentences (Type III) by putting the verbs into
the correct form.
1. If you (study) ______________ for the test, you (pass) ___________ it.
→ If you had studied for the test, you would have passed it.
2. If you (ask) ____________ me, I (help) ____________ you.
→ If you had asked me, I would have helped you.
3. If we (go) ___________ to the cinema, we (see) __________ my friend
Jacob.
→ If we had gone to the cinema, we would have seen my friend
Jacob.
4. If you (speak) ______ English, she (understand) ________
→ If you had spoken English, she would have understood
5. If they (listen) ________ to me, we (be) ____________ home earlier.
→ If they had listened to me, we would have been home earlier.

6. Exercise on Conditional Sentences Type 3 (2)
Complete the Conditional Sentences (Type III) by putting the verbs into the
correct form.
6. I (write) _____________ you a postcard if I (have) _____________ your
address.
→ I would have written you a postcard if I had had your address.
7. If I (not / break) ______________ my leg, I (take part) _____________ in the
contest.
→ If I had not broken my leg, I would have taken part in the contest.
8. If it (not/ start) ______________ to rain, we (walk) ____________ to the
museum.
→ If it had not started to rain, we would have walked to the museum.
9. We (swim) ____________ in the sea if there (not / be) ______________ so
many sharks there.
→ We would have swum in the sea if there had not been so many sharks
there.
10. If she (take) ___________ the bus, she (not / arrive) ______________ on time.
→ If she had taken the bus, she would not have arrived on time.

7. Exercises on Conditional Sentences (Mix). Type I or II (1)
Complete the Conditional Sentences. Decide whether to use
Type I or II.
1. If they go to Washington, they (see) _______________the White House.
→ If they go to Washington, they will see the White House.
2. If she (have) ________________a hamster, she would call him Fred.
→ If she had a hamster, she would call him Fred.
3. If he gave her a sweet, she (stop) ________________crying.
→ If he gave her a sweet, she would stop crying.
4. If he (arrive) ___________________ later, he will take a taxi.
→ If he arrives later, he will take a taxi.
5. We would understand him if he (speak) _________________ slowly.
→ We would understand him if he spoke slowly.

8. Exercises on Conditional Sentences (Mix). Type I or II (2)
Complete the Conditional Sentences. Decide whether to use
Type I or II.
6. Andy (cook) __________________ dinner if we buy the food.
→ Andy will cook dinner if we buy the food.
7. I will prepare breakfast if I (wake up) ________________ early.
→ I will prepare breakfast if I wake up early.
8. If they shared a room, they (fight) ____________________ all day long.
→ If they shared a room, they would fight all day long.
9. If you hate walking in the mountains, you (enjoy / not) ___________ the
tour.
→ If you hate walking in the mountains, you will not enjoy the tour.
10. Janet would go jogging if she (have / not) ______________ to do her
homework.
→ Janet would go jogging if she did not have to do her homework.

9. Exercise on Conditional Sentences Type I, II and III (1)
Complete the Conditional Sentences (Type I, II or III) by putting
the verbs into the correct form.
1. If they (have) _____________ time at the weekend, they will come to
see us.
→ If they have time at the weekend, they will come to see us.
2. If we sneak out quietly, nobody (notice) ______________.
→ If we sneak out quietly, nobody will notice.
3. If we (know) ______________ about your problem, we would have
helped you.
→ If we had known about your problem, we would have helped
you.
4. If I (be) ______________ you, I would not buy that dress.
→ If I were you, I would not buy that dress.
5. We (arrive) ______________ earlier if we had not missed the bus.
→ We would have arrived earlier if we had not missed the bus.

10. Exercise on Conditional Sentences Type I, II and III (2)
Complete the Conditional Sentences (Type I, II or III) by putting
the verbs into the correct form.
6. If I didn't have a mobile phone, my life (not / be) _______________
complete.
→ If I didn't have a mobile phone, my life would not be complete.
7. Okay, I (get) _______________ the popcorn if you buy the drinks.
→ Okay, I will get the popcorn if you buy the drinks.
8. If I (tell) _______________ you a secret, you would be sure to leak it.
→ If I told you a secret, you would be sure to leak it.
9. She (go) ______________ out with you if you had only asked her.
→ She would have gone out with you if you had only asked her.
10. I would not have read your diary if you (not hide) _______________ it
in such an obvious place.
→ I would not have read your diary if you had not hidden it in such
an obvious place.

11. Exercise on Exceptions (Conditional Sentences with different Tenses)
Exercise on Conditional Sentences with Auxiliaries (1)
Complete the conditional sentences (type I). Remember to use the
auxiliary verbs.
1. If it doesn't rain, we (can / go) _________________ swimming
tomorrow.
→ If it doesn't rain, we can go swimming tomorrow.
2. If you train hard, you (might / win) ______________ first prize.
→ If you train hard, you might win first prize.
3. If we go to Canada next year, we (can / improve) _______________
our English.
→ If we go to Canada next year, we can improve our English.
4. I (may / go) _________________ to the disco in the evening if I do the
washing-up now.
→ I may go to the disco in the evening if I do the washing-up now.
5. If we go on holiday next week, I (not / can / play) __________________
tennis with you.
→ If we go on holiday next week, I cannot play tennis with you.

12. Exercise on Exceptions (Conditional Sentences with different Tenses)
Exercise on Conditional Sentences with Auxiliaries (2)
Complete the conditional sentences (type I). Remember to use the
auxiliary verbs.
6. If you see Gareth tomorrow, you (should / tell) __________________
him that you love him.
→ If you see Gareth tomorrow, you should tell him that you love
him.
7. If my parents go shopping in the afternoon, I (must / look) __________
after my little sister.
→ If my parents go shopping in the afternoon, I must look after my
little sister.
8. He (must / be) ______________ a good drummer if he plays in a band.
→ He must be a good drummer if he plays in a band.
9. If you are listening to the radio after 10 pm, you (should / turn) _______
the volume down.
→ If you are listening to the radio after 10 pm, you should turn the
volume down.
10. If you like that shirt, you (can / have) ________________ it.
→ If you like that shirt, you can have it.

13. Exercise on Exceptions (Conditional Sentences with different Tenses)
Conditional Sentences Type III (1)
Study the following situations. In every sentence, the 'if' clause expresses a
situation in the past (Type III). Decide, however, whether the consequences
refer to the present (Conditional I) or past (Conditional II).
1. It didn't rain yesterday. So I had to water the plants yesterday.
If it (rain) ___________ yesterday, I (water / not) _______________ the plants.
→ If it had rained yesterday, I would not have watered the plants.
2. It didn't rain yesterday. So I am watering the plants now.
If it (rain) _________________ yesterday, I (water / not) ____________ the plants now.
→ If it had rained yesterday, I would not water the plants now.
3. I went to bed late last night. So I am still tired now.
If I (go) ___________________ to bed earlier yesterday, I (feel / not) ______________ so
tired now.
→ If I had gone to bed earlier yesterday, I would not feel so tired now.
4. I went to bed late last Tuesday. So I was very tired the following day.
If I (go) ________________ to bed earlier that Tuesday, I (feel / not) _________________
that tired the following day.
→ If I had gone to bed earlier that Tuesday, I would not have felt that tired the
following day.
5. After a night out, I want to drive home now. I haven't drunk any alcohol.
If I (drink) _____________ alcohol, I (drive / not) _________________.
→ If I had drunk alcohol, I would not drive.

14. Exercise on Exceptions (Conditional Sentences with different Tenses)
Conditional Sentences Type III (2)
Study the following situations. In every sentence, the 'if' clause expresses a
situation in the past (Type III). Decide, however, whether the consequences
refer to the present (Conditional I) or past (Conditional II).
6. After a night out last weekend, I drove home. I hadn't drunk any alcohol.
If I (drink) ________________ alcohol, I (drive / not) ___________________.
→ If I had drunk alcohol, I would not have driven.
7. We won the match last week. So when we came home, we looked really happy.
We (look / not) ________________ that happy if we (win / not) _____________
the match.
→ We would not have looked that happy if we had not won the match.
8. We've just won a match. So we look really happy now.
We (look / not) ______________ that happy if we (win / not) ________________
the match.
→ We would not look that happy if we had not won the match.
9. My daughter is blamed for having done something. She tells me now that she
didn't do it. I believe her.
She (tell) _____________________ me if she (do) ________________ it.
→ She would tell me if she had done it.
10. Last year, my daughter was blamed for having done something. She told me
that she hadn't done it. I believed her.
She (tell) _____________________ me if she (do) _____________________ it.
→ She would have told me if she had done it.

15. Mixed Conditionals (1)
Using the words in parentheses, complete the text below following the example given
with the appropriate conditional form.
1.a. She will be taking care of the children for us next weekend because her business trip was
cancelled.
Ex.: → But, she (take, not) would not be taking care of the children for us next
weekend if her business trip (be, not) had not been cancelled.
2.a. Tom is not going to come to dinner tomorrow because you insulted him yesterday.
2.b. But, he (come) ____________________if you (insult) ____________________ him.
→. But, he would be coming if you hadn't insulted him.
3.a. Marie is unhappy because she gave up her career when she got married.
3.b. But, Marie (be) ____________________happy if she (give, not) ____________________
up her career when she got married.
→ But, Marie would be happy if she hadn't given up her career when she got
married.
4.a. Dr. Mercer decided not to accept the research grant at Harvard because he is going to
take six months off to spend more time with his family.
4.b. But, Dr. Mercer (accept) ____________________the research grant at Harvard if he
(take, not) ____________________six months off to spend more time with his family.
→ But, Dr. Mercer would have accepted the research grant at Harvard if he weren't
going to take six months off to spend more time with his family.
5.a. Professor Schmitz talked so much about the Maasai tribe because she is an expert on
African tribal groups.
5.b. But, Professor Schmitz (talk, not) ____________________so much about the Maasai
tribe if she (be, not) ____________________an expert on African tribal groups.
→ But, Professor Schmitz would not have talked so much about the Maasai tribe if
she weren't an expert on African tribal groups.

16. Mixed Conditionals (2)
6.a. I am unemployed because I had a disagreement with my boss and I was fired.
6.b. But, I (be, not) ________________unemployed if I (have, not) ____________________a
disagreement with my boss and I (be, not) fired.
→ But, I wouldn't be unemployed if I hadn't had a disagreement with my boss and I
hadn't been fired.
7.a. Nicole speaks Chinese fluently because she lived in China for ten years.
7.b. But, Nicole (speak, not) ___________Chinese fluently if she (live, not) _______________in
China for ten years.
→ But, Nicole wouldn't speak Chinese fluently if she hadn't lived in China for ten
years.
8.a. I will not help you study for your test because you have spent the last two weeks partying and
wasting time.
8.b. But, I (help) ______________you study for your test if you (spend, not) _________________
the last two weeks partying and wasting time.
→ But, I would help you study for your test if you hadn't spent the last two weeks
partying and wasting time.
9.a. Eleanor and Ben are not going skiing with us this year because Eleanor just had a baby.
9.b. But, Eleanor and Ben (go) ____________________skiing with us this year if Eleanor (have,
not, just) ____________________a baby.
→ But, Eleanor and Ben would go skiing with us this year if Eleanor hadn't just had a
baby.
10.a. I am completely exhausted, so I will not go with you to the movies tonight.
10.b. But, if I (be, not) ______________completely exhausted, I (go) ____________________ with
you to the movies tonight.
→ But, if I weren't completely exhausted, I would go with you to the movies tonight.

17. Mixed Conditionals (3)
11.a. She is not worried about the conference tomorrow because she is not giving a speech.
11.b. But, she (be) ____________________worried about the conference tomorrow if she (give)
____________________a speech.
→ But, she would be worried about the conference tomorrow if she were giving a speech.
12.a. Frank is not going to the graduation ceremony because he broke his leg snowboarding last week.
12.b. But, Frank (go) ____________________to the graduation ceremony if he (break) ____________________
his leg snowboarding last week.
→ But, Frank would go to the graduation ceremony if he hadn't broken his leg snowboarding last
week.
13.a. They are not releasing the prisoner next month because there was so much public opposition to his parole.
13.b. But, they (release) ____________________the prisoner next month if there (be)
____________________so much opposition to his parole.
→ But, they would release the prisoner next month if there hadn't been so much opposition to his
parole.
14.a. The hotels filled up months in advance because the festival is going to include jazz artists from around the
globe.
14.b. But, the hotels (fill) _________________up months in advance if the festival (include) _________________
jazz artists from around the globe.
→ But, the hotels wouldn't have filled up months in advance if the festival weren't going to include
jazz artists from around the globe.
15.a. We are not worried about the recent string of robberies in the neighbourhood because the police have
started regularly patrolling the area.
15.b. But, we (be) ____________________ worried about the recent string of robberies in the neighbourhood if
the police (start, not) ____________________regularly patrolling the area.
→ But, we would be worried about the recent string of robberies in the neighbourhood if the police
hadn't started regularly patrolling the area.