1.Peter is fat because he eats so many chips => 

If he didn't eat so many chips, he wouldn't be fat

2.If you are not careful,you will cut yourself with that knife =>

Unless you are careful,you will cut yourself with that knife.

3.If you do not like this one,I'll bring you another =>

Unless you like this one, I'll bring you another.

4.I'll not be able to do any work if I do not have a quiet room =>

.Unless I have a quite room,I'll not be able to do any work.

5.If she does not hurry,she will be late =>

Unless she hurries, she’ll be late.

6.She doesn't have a bike so she has to walk to school =>

If she had a bicycle, she wouldn't have to walk to school

7.I am not rich businessman and I can't afford to buy an expensive car =>

 If I were a rich businessman, I could afford to buy an expensive car

 8.My parents don't allow me to go,so I have to stay at home =>

 If my parents allowed me to go, I wouldn't have to stay at home

9.She doesn't pay attention to her cooking so the food is horrile =>

If she paid attention to her cooking, the food wouldn't be horrible

10.They do not know each other very well so they do not talk to each other =>

 If they knew each other very well , they would not be reserved 

11.He is not a millionaire,so he can't give you all that you want => 

 If he were a millionaire , he could give you all that you want 

12.She loves him so she forgives him easily =>

 If she didn't love him, she wouldn't forgive him easily.

13.We get up late in the morning so we do not have time to have breakfast =>

If we got up late this morning, he wouldn't have time to have breakfast

14.If she does not hurry,she will be late for school => 

.Unless she hurries,you'll be late.

15.We can't go out because he has to study for his exam => 

 If he didn't have to study for his exam, he could go out

16.She is lazy so she can't pass the exam =>

 If she weren't lazy, she could pass the exam.

17.He will pay me tonight,I will have enough money to buy a car =>

 If he pays me tonight, I will have enough money to buy a car

18.He smokes too much;that why he can't get rid of his cough =>

 If he didn’t smoke too much, he could get rid of his cough.

19.She is very shy,so she doesn't enjoy the party =>

 If she weren’t very shy, she would enjoy the party.

20.He doesn't take any exercises.He is so unhealthy =>

 If he took some exercises, He would be healthy.

21.Study hard or you won't pass the exam =>

If you don’t study hard, you won’t pass the exam.

22.Don't be impatient or you will make mistakes =>

 If you are impatient, you will make mistakes.

23.If you want my advice,I wouldn't buy it => 

 If I were you, I wouldn't buy it.

24.I only come if they invite me =>

 Unless they invite me, I will not come.

25.He didn't revise all his lessons,he failed the exam =>

 If he had revised all his lessons, he wouldn't have failed the exam.

26.Leave me alone or I'll call the police =>

Unless you leave me alone, I'll call the police

1. Peter is fat because he eats so many chips

If he didn't eat so many chips, he wouldn't be fat

2.If you are not careful,you will cut yourself with that knife 

Unless you are careful,you will cut yourself with that knife.

3.If you do not like this one,I'll bring you another 

Unless you like this one, I'll bring you another.

4.I'll not be able to do any work if I do not have a quiet room 

Unless I have a quite room,I'll not be able to do any work.

5.If she does not hurry,she will be late

Unless she hurries, she’ll be late.

6.She doesn't have a bike so she has to walk to school 

If she had a bicycle, she wouldn't have to walk to school

7.I am not rich businessman and I can't afford to buy an expensive car 

 If I were a rich businessman, I could afford to buy an expensive car

 8.My parents don't allow me to go,so I have to stay at home 

 If my parents allowed me to go, I wouldn't have to stay at home

9.She doesn't pay attention to her cooking so the food is horrile 

If she paid attention to her cooking, the food wouldn't be horrible

10.They do not know each other very well so they do not talk to each other 

 If they knew each other very well , they would not be reserved 

11.He is not a millionaire,so he can't give you all that you want 

 If he were a millionaire , he could give you all that you want 

12.She loves him so she forgives him easily 

 If she didn't love him, she wouldn't forgive him easily.

13.We get up late in the morning so we do not have time to have breakfast 

If we got up late this morning, he wouldn't have time to have breakfast

14.If she does not hurry,she will be late for school 

Unless she hurries,you'll be late.

15.We can't go out because he has to study for his exam 

 If he didn't have to study for his exam, he could go out

My wife and I travelled to mexico by air last summer.

If you don't like this one I'll bring you another.

I had a little trouble with my car last week.

If he washes my car I'll give him $10.

They didn't do their homework last night.

1/ travelled

2/ don't like

3/had

4/washes

5/ didn't do

travelled

don't like

had

washes

didn't do

1.      Unless you like this one, I’ll bring you another =>If…………………you do not like this one, I will bring you another……………………………

2.      Unless she hurries, she’ll be late  => If …………………she does not hurry, she'll be late…………………………….

3.      Unless you were careful, you would cut yourself => If…………………………………you were not careful, you would cut yourself …………………

4.      Unless you had sneezed, he wouldn’t have known that we were there. =>If……………you had not sneezed, he wouldn’t have known that we were there. ………………………………………  

Unless Anna came early, she couldn’t meet me => If……………Anna did not come early, she couldn’t meet me…………….

II. Use UNLESS instead of IF.

1. If you are not careful, you will cut yourself with that knife.

-> Unless you are careful, you will cut yourself with that knife.

2. If you do not like this one, I’ll bring you another.

-> Unless you like this one, I’ll bring you another. 

3. I’ll not be able to do any work if I do not have a quiet room.

-> Unless I have a quiet room, I’ll not be able to do any work.

4. If she does not hurry, she’ll be late.

-> Unless she hurries, she’ll be late. 

5. If we had more rain, our crops would be better.

-> Unless we had more rain, our crops wouldn't be better. 

6. The crops would have been ruined if the flood had risen higher.

-> Unless the flood had risen higher, the crops wouldn't have been ruined.

7. If you had not sneezed, he wouldn’t have known that we were there.

-> Unless had sneezed, he wouldn’t have known that we were there. 

8. If she did her hair differently, she would look quite nice.

-> Unless she did her hair differently, she wouldn't look quite nice.

9. If John had played for our football team, we would not have lost the game. 

-> Unless John had played for our football team, we would have lost the game. 

10. If I won a big prize in a lottery, I’d give up my job.

-> Unless I won a big prize in a lottery, I wouldn't give up my job.

1 Unless you are careful, you will cut your self with that knife

2 Unless you like this one,  I’ll bring you another

3  I’ll not be able to do any work unless I have a quiet room

4 Unless she hurries, she’ll be late

5 Unless we had more rain, our crops wouldn't be better

6 The crops wouldn't have been ruined unless the flood had risen higher

7  Unless you had not sneezed, he wouldn’t have known that we were there

8 Unless she did her hair differently, she wouldn't look quite nice

9  Unless John had played for our football team, we would have lost the game.

10 Unless I won a big prize in a lottery, I’d not give up my job.

1. If she doesn’t hurry, she’ll be late

Unless. ……she hurries,she’ll be late ………………………………………………………… 

2. If we had more rain, our crops would be better

Unless. ………we had more rain, our crops wouldn't be better………………………………………… 

3. If you don’t like this one, I will bring you another

Unless. …you like this one, I will bring you another ……………………………………………

4. They do not understand you because you speak too fast.

If………you didn't speak too fast, they would understand you ………………………………………………………….

5. I don’t know her number, so I don’t ring her up.

If ……I knew her number, I would ring her up.…………………………………………………………… 

6.Today isn’t Sunday, so the students don’t go swimming.

If ………today were Sunday,students would go swimming. …………………………………………………….

7. Hury up or you will be late for the train.

If …you don't hurry  you will be late for the train.……………………………………………………….

8.Ha can pass the exam because she works hard.

If ……Ha works hard, Ha can pass the exam……………………………………………………….

9. Working too much can make you feel tired

If ……you work too much you will feel tired………………………………………………….. 

câu điều kiện

1. I don’t buy it because I don’t have enough money.
----> If I had enough money, i would buy it
2. I didn’t buy it because I didn’t have enough money.
----> I would buy it if I had enough money
3. There was a test yesterday. I didn’t know that, so I didn’t study for it.
----> If I had known there was a test yesterday, i would have studied for it
4. I’m busy right now, so I can’t help you.
----> I could help you if i weren't busy right now
5. He’s very thin, that’s why he feels the cold so much.
----> If he weren't very thin, he would not feel the cold so much.
6. I didn’t eat breakfast several hours ago, so I am hungry now.
----> If I had eaten breakfast several hours ago,i wouldn't be hungry now.
7. If John had played for our football team, we would not have lost the game.
----> Unless John had played for our football team, we would have lost the game.
8. If I won a big prize in a lottery, I’d give up my job.
----> Unless I won a big prize in a lottery, I’d not give up my job.
9. If you don’t like this one, I’ll bring you another.
----> Unless you like this one, I’ll bring you another.
10. I’ll only help you if you promise to try harder.
----> Unless you promise to try harder, I’ll not help you

câu điều kiện

1. I don’t buy it because I don’t have enough money.
----> If I ....................had enough money , i would buy it....................................................................................
2. I didn’t buy it because I didn’t have enough money.
----> I would..............have bought it if i had had enough money....................................................................................
3. There was a test yesterday. I didn’t know that, so I didn’t study for it.
----> If I ....................had known that , i would have studied for it....................................................................................
4. I’m busy right now, so I can’t help you.
----> I could...............help you if i weren't busy right now....................................................................................
5. He’s very thin, that’s why he feels the cold so much.
----> If he...............weren't very thin , he wouldn't feel the cold so much........................................................................................
6. I didn’t eat breakfast several hours ago, so I am hungry now.
----> If I.................had eaten breakfast several hours ago , i wouldn't be hungry now.........................................................................................
7. If John had played for our football team, we would not have lost the game.
----> Unless..............John hadn't played for our football team , we would not have lost the game. ......................................................................................
8. If I won a big prize in a lottery, I’d give up my job.
----> Unless..........I won a big prize in a lottery, i wouldn't give up my job..........................................................................................
9. If you don’t like this one, I’ll bring you another.
----> Unless...........you like this one , i will bring you another.........................................................................................
10. I’ll only help you if you promise to try harder.
----> Unless........you promíe to try harder , i will not help you............................................................................................

thanks

Use UNLESS instead of IF

1. If you do not like this one, I'll bring you another.

Unless............you like this one, I will bring you another..................................................

2. If she does not hurry, she'll be late.

Unless.............she hurries, she will be late........................................

3. If you are not careful, you'll cut yourself.

Unless...........you are careful, you will cut yourself...............................................

4. If you had not sneezed, he wouldn't have known that we were there.

Unless........you had sneezed, he wouldn't have known we were there

.....................................................

1. If you do not like this one, I'll bring you another.

Unless.....you like this one,i 'll bring you another........................................................

2. If she does not hurry, she'll be late.

Unless..she hurries, she'll be late...................................................

3. If you are not careful, you'll cut yourself.

Unless you are careful ,you'll cut yourself..........................................................

4. If you had not sneezed, he wouldn't have known that we were there.

unless you had sneezed, he wouldn't have known tha we were there

1. If you do not like this one, I'll bring you another.

Unless you like this one, I'll bring you another........................................................

2. If she does not hurry, she'll be late.

Unless she hurries, she'll be late....................................

3. If you are not careful, you'll cut yourself.

Unless you are careful, you'll cut yourself...........................................................

4. If you had not sneezed, he wouldn't have known that we were there.

Unless you had sneezed, he wouldn't have known that we were there..............................................................

Use UNLESS INSTEAD of IF:

1. if you are not careful, you will cut yourself with that knife.

- Unless you are careful, you will cut yourself with that knife.

2. If you do not like this one, I'll bring you another.

-Unless you like this one, I'll bring you another.

3. She'll be late if she does not hurry.

-Unless she hurries, she will be late.

4. If you don't sneeze, he won't know that we are there.

-]Unless you sneeze, he won't know that we are there.

5. Turn down the gas or the rice will burn.

-Unless you turn down the gas, the rice will burn.

a) unless you are careful, you will cut yourself with that knife

b) unless you this one, I'll bring you another

c) Unless she hurries, she will be late

d) I'll not be able to do any work unless I have a quiet room.

e) Unless she waters these trees, they will die.

f) He will stay here unless he wants to go.