4. If you don't do it carefully, you'll feel sorry afterwards.
5. If you don't ask him first, he won't offer to help.
6. Unless you are calm, you'll make a wrong decision.
7. If you are not careful, you'll cut yourself with that knife.

1If you don't do it carefully, you'll feel sorry afterwards.
2If you don't ask him first, he won't offer to help.
3Unless you are calm, you'll make a wrong decision.
4If you are not careful, you'll cut yourself with that knife.

1.be good or your parents will be very unhappy

if..........YOU ARE GOOD, YOUR PARENTS WILL BE VERY HAPPY...........................................................

2. do it carefully or you'll feel sorry afterwards

if.........YOU DO IT CAREFULLY, YOU WILL FEEL SORRY AFTERWARDS..............................................................

1. if you are good, your parents will be happy

2. if you do not do it carefully, you will feel sorry afterward

nếu có or dùng if trong loại ko thực ở hiện tại

 1. Take exercise regularly and you will feel healthier.

-> If you take exercise regularly, you will feel healthier

2. Leave now, or you'll be late for class

. -> If you don't leave now, you'll be late for class

3. You go to bed now, or your cold will get worse.

-> If you go to bed now, your cold won't get worse

4. Save electricity, or you'll pay much per month.

-> If you don't save electricity, you will pay much per month

5. Unless he phones now, he'll get no information

. -> If he phones now, he will get information

6. Don't try to clean this cloth, or it may lose its color.

-> If you clean this cloth, it may lose its color

7. Water these plants properly, or they won't grow well

. -> If you don't water these plants properly, they won't grow well

8. Study hard, or you'll fail in the next exam.

-> If you don't study hard, you'll fail in the exam

9. Emma may miss the train. But she can get the next one.

-> If Emma misses the train, she can get the next one

10. The children mustn't go near Nick's dog. It'll bite them.

-> If the children go near Nick's dog, it'll  bite them

11. He should study medicine and surgery because he wants to be a doctor.

-> If he wants to be a doctor, he should  study medicine and surgery

12. He will not get good grades because he doesn't prepare his lesson carefully

→If he doesn't prepare his lesson carefully, he will not get good grades

13. My uncle can't buy that house because he is poor.

-> If my uncle weren't poor, he could buy that house

14. He can't speak English well because he has no chance to practice

-> If he had a chance to practice, he could speak English well

15. Kate won't come to the party because she is sick

-> If Kate weren't sick, she would come to the party

16. She doesn't have tickets, so she won't take us to the zoo.

-> If  she had tickets, she would take us to the zoo

17. My friend can't join the trip, so he won't write to me

-> If my friend could join the trip, he would write to me

18. It isn't fine now, so we won't have a picnic in the meadow

-> If it were fine now, we would have a picnic in the meadow

19. We don't have a bicycle, so we don't go there for a picnic

-> If we had a bicycle, we would go there for a picnic

20. She is not on board now, so she can't experience these marvelous

-> If she were on board now, she could experience these marvelous

21. We don't have enough money to go on holiday

-> If we had enough money, we would go on holiday

22. You are not tall enough to reach that shelf

-> If you were tall enough, you could reach that shelf

23. You should work hard on the pronunciation

-> If I were you, I would work hard on the pronunciation

24. You shouldn't tell him the truth.

-> If I were you, I wouldn't tell him the truth

25. I think you shouldn't play games too much.

-> If I were you, I wouldn't play games too much

26. I think you should spend less money on luxurious phones.

-> If I were you, I would  spend less money on luxurious phones.

rewrite the following sentences .

1 / study hard and you will pass the exam .

- if you study hard, you will pass the exam

2 , save some money or you won't able to buy the house .

- if you don't save some money, you won't able to buy the house.

3 , be good or your parents will be very unhappy .

- if you aren't good, your parents will be very unhappy

4 , do it carefully or you will feel sorry afterwards .

- if you don't do it carefully, you will feel sorry afterwards

5 , ask him first and he will offer to help .

- if you ask him first, he will offer to help

6 , be calm or you will make a wrong decision .

- if you aren't calm, you will make a wrong decision

7 , be careful or you will cut yourself with that knife .

- if you aren't careful, you will cut yourself with that knife

rewrite the following sentences .

1 / study hard and you will pass the exam .

- if you study hard, you will pass the exam..................

2 , save some money or you won't able to buy the house .

- if you save some money, you will be able to buy the house

3 , be good or your parents will be very unhappy .

- if you be good, your parents will be very happy

4 , do it carefully or you will feel sorry afterwards .

- if not do it carefully, you will feel sorry afterawards

5 , ask him first and he will offer to help .

- if you ask him first, he will offer to help

6 , be calm or you will make a wrong decision .

- if you not be calm, you will make a wrong decision

7 , be careful or you will cut yourself with that knife .

- if you not be careful, you will cutyourself with that knife

1 / study hard and you will pass the exam .

- if you study hard, you will pass the exam

2 , save some money or you won't able to buy the house .

- if you don't save some money, you won't able to buy the house.

3 , be good or your parents will be very unhappy .

- if you aren't good, your parents will be very unhappy

4 , do it carefully or you will feel sorry afterwards .

- if you don't do it carefully, you will feel sorry afterwards

5 , ask him first and he will offer to help .

- if you ask him first, he will offer to help

6 , be calm or you will make a wrong decision .

- if you aren't calm, you will make a wrong decision

7 , be careful or you will cut yourself with that knife .

- if you aren't careful, you will cut yourself with that knife

1. If you aren't good, your parents will be very unhappy

2. If you don't do it carefully, you'll feel sorry afterwards

3. If you study hard, you will pass the exam

4. If you aren't careful, you'll cut yourself with that knife

5. If you save some money, you will able to buy that house

6. If you ask him first, he will offer to help

7. If you aren't calm, you'll make a wrong decision

8. If you sing well, everyone will clap their hands

18 If you  aren't polite, you'll be sacked.

19 If you don't do your homework, you'll get a zero.

20 If you help the poor, you'll  feel happier.

1. Be careful or you'll get a cold

If you don't be careful, you will get a cold

2. Our teacher is a carefully driver

Our teacher drives carefully (chắc bạn đánh thiêu một chữ r rùi)

3. I went to school by motorbike some years ago, but now I cycle

I used to go to school by motorbike, now I cycle.

4.My mom washed by hand in the past, but she no longer do it now.

My mom used to wash by hand in the past.

you work hard, you will fail the exams. 

you do not save any money, you will not be able to buy the house. 

you behave yourself, your parents will be very unhappy. 

If you do not have your hair cut, they will not let you in.

you do it carefully, you will feel sorry afterwards. 

you do not ask him first, he won't offer to help. 

you go out more, you will fail ill. 

you take a hat with you, you will be caught in the rain on the way back. 

you do not write it again more carefully, he will not be able to read it. 

you have another look at those lessons, you will get bad marks. 

III.Conditional sentences

1.Be early or you will be punished=> If……you are early, you won't be punished…….

2.Be helpful and people will love you=>If …you are helpful, people will love you….

3.Study studiously or we can’t get good mark=>If… we study studioustly, we can get good mark……

4.Lan has to do a lot of homework,so she has stay at home=>If……lan didn't have to do a lot of homework, she wouldn't have stay at home…..

5.Nga doesn’t feel happy because she dosen’t study English well=>If…nga felt happy, she would study english well…

6.Unless the weather is good, we can’t go=>If…the weather isn't good, we can't go ..

7.If the boys doesn’t study well, he will fail=>If…the boys studied well, he wouldn't fail..

8.It doesn’t rain, so we don’t bring a umbrella=>If…it rained, we would bring a umbrella..