1/ I (do) if I (have) time. 

- I will do it if I have time. (type 1) 

- I would do it if I had time. (type 2) 

- I would have done it if I had had time. (type 3) 

2/ If she (not try), she (not succeed). 

 - If she doesn't tried, she won't succeed____________________________________________________  - If she didn't tried, she wouldn't succeed____________________________________________________ 

 - If she hadn't tried, she wouldn't have succeeded____________________________________________________ 

 3/ If I (see) her, I (tell) her. 

 - If I see her, I will tell her____________________________________________________ 

 - If I saw her, I would tell her____________________________________________________ 

 - If I had seen her, I would have told her____________________________________________________ 

 4/ If I (be) ill, I (stay) at home. 

 - If I am ill, I will stay at home____________________________________________________ 

 -If I was ill, I would stay at home ____________________________________________________ 

 -If I had been ill, I would have stayed at home ____________________________________________________ 

 5/ What (you do) if the bus (not come). 

 -What will you do if the bus doesn't come ____________________________________________________ 

 -What would you do if the bus didn't come ____________________________________________________ 

 - What would you have done if the bus hadn't come____________________________________________________ 

 6/ I (be) sorry if she (leave).  

- I will be sorry if she leaves____________________________________________________ 

 - I would be sorry if she left____________________________________________________ 

 - I would have been sorry if she had left____________________________________________________ 

 7/ I (not stay) in this job if I (can find) another one. 

 - I won't stay in this job if I can find another one____________________________________________________ 

 - I wouldn't stay in this job if I could find another one____________________________________________________ 

 - I wouldn't have stayed in this job if I had found another one____________________________________________________ 

 8/ They (get) wet if it (rain). 

 - They will get wet if it rains____________________________________________________ 

 -  They would get wet if it rained____________________________________________________ 

 -  They would have got wet if it had rained____________________________________________________ 

 9/ It (not bite) you unless you (move) 

 - It won't bit you unless you move ____________________________________________________ 

 - It wouldn't bit you unless you moved____________________________________________________ 

 - It wouldn't have bitten you unless you had moved ____________________________________________________ 

 10/ We (go) out unless it (stop) snowing. 

 - We will go out unless it stops snowing____________________________________________________ 

 - We would go out unless it stopped snowing____________________________________________________ 

 -We would have gone out unless it had stopped snowing ____________________________________________________ 

1/ I (do) if I (have) time. 

- I will do it if I have time. (type 1) 

- I would do it if I had time. (type 2) 

- I would have done it if I had had time. (type 3) 

2/ If she (not try), she (not succeed). 

 - If she doesn't tried, she won't succeed____________________________________________________  - If she didn't tried, she wouldn't succeed____________________________________________________ 

 - If she hadn't tried, she wouldn't have succeeded____________________________________________________ 

 3/ If I (see) her, I (tell) her. 

 - If I see her, I will tell her____________________________________________________ 

 - If I saw her, I would tell her____________________________________________________ 

 - If I had seen her, I would have told her____________________________________________________ 

 4/ If I (be) ill, I (stay) at home. 

 - If I am ill, I will stay at home____________________________________________________ 

 -If I was ill, I would stay at home ____________________________________________________ 

 -If I had been ill, I would have stayed at home ____________________________________________________ 

 5/ What (you do) if the bus (not come). 

 -What will you do if the bus doesn't come ____________________________________________________ 

 -What would you do if the bus didn't come ____________________________________________________ 

 - What would you have done if the bus hadn't come____________________________________________________ 

 6/ I (be) sorry if she (leave).  

- I will be sorry if she leaves____________________________________________________ 

 - I would be sorry if she left____________________________________________________ 

 - I would have been sorry if she had left____________________________________________________ 

 7/ I (not stay) in this job if I (can find) another one. 

 - I won't stay in this job if I can find another one____________________________________________________ 

 - I wouldn't stay in this job if I could find another one____________________________________________________ 

 - I wouldn't have stayed in this job if I had found another one____________________________________________________ 

 8/ They (get) wet if it (rain). 

 - They will get wet if it rains____________________________________________________ 

 -  They would get wet if it rained____________________________________________________ 

 -  They would have got wet if it had rained____________________________________________________ 

 9/ It (not bite) you unless you (move) 

 - It won't bit you unless you move ____________________________________________________ 

 - It wouldn't bit you unless you moved____________________________________________________ 

 - It wouldn't have bitten you unless you had moved ____________________________________________________ 

 10/ We (go) out unless it (stop) snowing. 

 - We will go out unless it stops snowing____________________________________________________ 

 - We would go out unless it stopped snowing____________________________________________________ 

 -We would have gone out unless it had stopped snowing ____________________________________________________ 

EX1 fill in the gaps with the correct verb tense of the verbs in brackets. make sure you the sentence is a first type conditional sentence

1, if i don't have (not/have) lunch, i will be (be) hungry

2, if he isn't (not/be) at work, he will be (be) at home then

3, if i don't work (not/work) , i will go (go) to a disco

4, if Oanh isn't (not/be) thirsty, she won't drink (not/drink) any fizzy mineral water

5, if she doesn't get (not/get) tired, i will invite (invite) her to our party

6, if they don't communicate (not/communicate), they won't have (not/have) any jobs

7, if my daughter doesn't do (not/do) the washing up, i will have to (have to) do it instead of her

8, i won't tell (not/tell) anybody about it if you don't want (not/want)

9, i am sure she will do( to do) it if you ask (to ask) her

10, they will come ( come ) if she invites (invite) them

11, he will write (write) a letter to her if she writes (write) first

12, i will go (go) there if you go (go) with me

13, Max will pass (pass) the exam if he studies (study) hard

14, if he isn't (not/be) at home, i will visit (visit) his sister then

15, if she doesn't walk (not/walk) every day , she won't be (not/be) healthy enough

16,if max doesn't accept (not/accept) alex's invitaion this time, alex won't invite (nott/invite) him again

17, if my kid. doesn't read (not/read) this book , he won't get (not/get) a good mark in Literature

18, if tom doesn't water (not/water) the violets, they will die (die)

19, if lena isn't (not/be) happy, she won't stay (not/stay)there for a long time

20, if my son doesn't make ( not/make) his bed, he won't play (not/play) football with his friends

21, if my teacher doesn't like (not/like) my english, i will try (try) to study it harder than before

22, my son will speak (speak) english fluently if he goes (go) to study enlish abroad

23, if she falls (fall) in love with henry , they will get (get) married, i think

Dài dị trời

1, If you try your best to learn E at home, you'll good at speaking it.
2, where would you go with your friends if you could see them for the last time?
3, Without following the advice of taking one of these tablets yesterday, I would not feel well now
4, if it hadn't been for her talent last year, she would not have won the first prize in the contest
5, If you want to get lots of money, you must work hard

1. If I DON'T HAVE (not /have) lunch, I WILL BE (be) hungry.
2. If he ISN'T (not /be) at work, he WILL BE (be) at home then.
3. If I DON'T WORK (not/work), I WILL GO (go) to a disco.
4. If Oanh ISN'T (not/ be) thirsty, she WON'T DRINK (not/drink) any fizzy mineral
water.
5. If she DOESN'T GET (not/ get) tired, I WILL INVITE ( invite) her to our party.
6. If they DON'T COMMUNICATE (not/ communicate), they WON'T HAVE (not /have) any jobs.

7. If my daughter DOESN'T DO (not/ do) the washing up, I WILL HAVE TO (have to) do it instead
of her.
8. I WON'T TELL (not /tell) anybody about it if you DON'T WANT (not/ want).
9. I am sure she WILL DO (to do) it if you ASK (to ask) her.
10. They WILL COME (come) if she INVITES (invite) them.
11. He WILL WRITE ( write) a letter to her if she WRITES (write) first.
12. I WILL GO (go) there if you GO (go) with me.
13. Max WILL PASS ( pass) the exam if he STUDIES (study) hard.
14. If he ISN'T (not / be) at home, I WILL VISIT ( visit) his sister then.
15. If she DOESN'T WALK (not /walk) every day, she WON'T BE (not / be) healthy enough.
16. If Max DOESN'T ACCEPT (not / accept) Alex’s invitation this time, Alex WON'T INVITE (not/ invite)
him again.
17. If my kid DOESN'T READ (not / read) this book, he WON'T GET (not /get) a good mark in
Literature.
18. If Tom DOESN'T WATER (not/ water) the violets, they WILL DIE (die).
19. If Lena ISN'T (not/ be) happy, she WON'T STAY (not /stay) there for a long
time.
20. If my son DOESN'T MAKE (not /make) his bed, he WON'T PLAY (not / play) football with his
friends.
21. If my teacher DOESN'T LIKE (not/like) my English, I WILL TRY ( try) to study it harder than
before.
22. My son WILL SPEAK ( speak) English fluently if he GOES ( go) to study English abroad.
23. If she FALLS ( fall) in love with Henry, they WILL GET (get) married, I think.
24. If you HELP (help) me, I WILL HELP (help) you.
25. If they CATCH (catch) the bus, they WILL ARRIVE (arrive) on time.
26. If my parents SUPPORT (support) me, I WILL BE (be) a better person.
27. If it RAINS (rain), I WILL GET (get) wet.
28. Sally and Elizabeth WILL GO (go) out tonight if their parents ALLOW (allow) it.
29. They WILL VISIT (visit) Eiffel Tower if they GO (go) to France.

30. If I PASS (pass) the year, my parents WILL GIVE (give) me a gift.
31. If I DON'T PASS (not/pass) the year, my parents WILL BE (be) very disappointed.
32. If the cable TV DOESN'T WORK (not/work), we WILL RENT (rent) a DVD.
33. If the baby DOESN'T EAT (not/eat), we WILL SEE (see) the doctor.
34. If the T-shirt SUITS (suit) me, I WILL BUY (buy) it.
35. If you CONTINUE (continue) on a diet, you WILL GET (get) sick.
36. If you ARE (be) a good listener, you WILL HAVE (have) many friends.
37. If you ARE NOT (not/be) careful, you WILL SPOIL (spoil) the machine.
38. If she IS NOT (not / be) careful, she WON'T HAVE (not/have) enough money left.
39. If you GET (get) enough sleep, you WILL FEEL (feel) healthier.
40. My parents WILL GIVE (give) me a hug, if I ARRIVE (arrive) home early.
41. If you ARE NOT (not/be) careful, you WILL FALL (fall).
42. If she EATS (eat) that mayonnaise, she WILL BE (be) sick.
43. If they DON'T BEHAVE (not/behave), their parents WILL PUNISH (punish) them.
44. She WILL GO (go) on a trip if she HAS GOT (have got) holidays in August.
45. I WILL GET (get) dehydrated if you DON'T DRINK (not/drink) more water.
46. If it IS (be) too much heat, I WILL TURN OFF (turn off) the air conditioning.
47. You WILL UNDERSTAND (understand) conditional sentences if you PRACTISE (practise) carefully.
48. We (do) WILL DO this for you if you want.
49. If we (need) NEED some help, we will ask.
50. If Peter stays with his grandparents, Susan (not be) WON'T BE happy.
51. If we win the money, we (buy) WILL BUY a new house.
52. She (not write) WON'T WRITE to you if she leaves.
53. We (go) WILL GO on holiday if there is time.

1. If we (run out) _______run out______ of oil, we (need) _____will need_______ other kinds of energy.

2. Pollution (increase )_____will increase_______ if we (use) ________use_______ more oil and coal.

3. If pollution (increase) ______increases__________ , more and more trees (die)______will die________

4. The climate (change)____will change_____________ if more trees (die) ___die_________

5. If we (try) _____try_______ to control pollution, it (be)________will be_______ expensive.

6. if we (not control)______don't control______ pollution soon, It (be) _______will be________ too late.

7. If you need any more money I (lend)_______will lend____ you some.

8. you can go if you (be) __are___ ready.

9. If the weather is fine tomorrow we ______will go________ for a picnic.

10. Just ask me if you (need)____need_____ any help.

11. It will be quicker if She (go) _____goes_________ by plane.

12. If she comes late again, she (lose) _____will lose______ her job.

13. I’ll give you some money if you (need) ___need______________ it.

14. If we (not go) ______don't go___ to their party next week, They ( be)____will be___ very angry.

15. I (be)_____would be_____ happy if you (stop) _____stopped______ smoking.

16. What will you do if you (be) _____were_________ the leader?(câu này thấy hơi lạ, để xem lại thử)

17 What (happen)___will happen_____ if you (not go) ______don't go_______ to work tomorrow?

18. She (stay)_____would stay_______ at home if it (rain) _______rained________

19. I’m sure she’ll understand the problem if you (tell )____tell_________ her.

20. If I (find) _____find_________ 100.000 note on the street, I (keep)____will keep_______ it.

1 works will pass

2 come will phone

3 will feel do not give

4 goes will be

5 can know do not reveal

6 eats will be

7 do not hurry will miss

8 see

9 had would you go

10 cooks

1. I would be surprised if Ann came to see us now.

2. If we had enough money,we would go on holiday

3. Unless you do these exercises more carefully, you will fail the exam.

4. If I knew the answer, I could tell you.

5. If she knew French, she could apply for the job

6. Unless she cam here now, we'd come back home

7. Unless you are careful, you will be able to get the job

8. If it rains soon, the tree won't die

* Rewrite the sentences.

1. It is late now; I don't think Ann will come to see us.

-> I would be surprised if __________Ann came to see us________.

2. We don't go on holiday because we don't have enough money.

-> If _________we had enough money, we would go on holiday_________.

3. Do these exercises more carefully or you will fail the exams.

->Unless_________you do these exercises more carefully, you will fail the exams_________.

4. I do not know the answer so I cannot tell you.

-> If _________I knew the answer, I could tell you_________.

5. She can't apply for the job because she doesn't know Frencj.

-> If she knew__________Frencj, she could apply for the job________.

6. If she didn't come here now, we'd come back home.

-> Unless__________she came here now, we'd come back home________.

7. Be careful or you will not be able to get the job.

-> Unless__________you are careful, you won't be able to get the job________.

8. The trees will die unless it rains soon.

-> If_________it doesn't rain soon, the trees will die_________.