1.Keep quiet or you will wake the baby. → If you don't keep quiet, you will wake the baby.

2.Say no more, and you will understand the lesson. → If you stop talking, you will understand the lesson.

If you don't keep silent, you will wake the baby up

If you don't stop talking, you won't understand the lesson

If I know her number, I will ring her up

If I learn this subject, I will know the answer

If we have a map, we won't got lost

If Susan hadn't eaten 4 cream cakes, she wouldn't have felt sick

If the doctor had tried their best, the patient wouldn't have died

If he hadn't came to work late every day, he wouldn't have lost his job

If Peter doesn't eat so many chips, he won't be fat

If Robert hadn't started smoking cigarettes, he wouldn't have had a bad cough

1.If you don't keep quiet, you will wake the baby.

2.If you keep talking, you won't understand the lesson.

3.If you throw garbage in the river, the water will be polluted.

4. If I knew her number, I would have called her.

5.If I knew the answer, I would tell you.

6.If the water is too dirty, the fish will die.

7.If we don't have a map, we will get lost.

8. If Susan eats four cakes, she will get sick.

9.If the weather wasn't good, we wouldn't have had a picnic.

10.If we keep the water clean, we will have enough water to use in the future.

11.If Peter eats too many sweet potatoes, he might get fat.

12.If you water regularly the plant will grow well.

13. If you don't finish your homework, you won't be able to go out tonight.

14.If they go out, they will help me.

15.If he practices more, he will be able to win the game.

If you don't keep silent, you will wake the baby up

If you talk more, you won't understand the lesson

Unless she hurries, she won't be late

Unless you are careful, you will cut yourself

If she whispers, everyone won't know what she is saying

If you eat more vegetables, you will be healthier

If you don't pay the water bill today, your clean water will be cut off

If you don't stop smoking, your cough may be worse

If we use less fosil fuel, they won't be run out soon

Exercise 2: Make conditional sentences:

1.      Keep silent or you’ll wake the baby up.

2.       →If  keep silent, you’ll wake the baby up.

3.      Stop talking or you won’t understand the lesson.

→ If stop talking, you won’t understand the lesson.

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 careful, you’ll cut yourself

5. Unless she whispers, everyone knows what she is saying.

If she doesn't whispers, everyone knows what she is saying.

6. Eat more vegetables and you will be healthier

If Eat more vegetables, you will be healthier

7. Pay  clean water  bill today or your  clean water will be cut off.

If Pay  clean water  bill today, your  clean water will be cut off.

8. Stop smoking otherwise your cough may be worse.

If stop smoking otherwise, your cough may be worse.

9. Unless we use less fossil fuel, they will be run out soon.

If we don't use less fossil fuel, they will be run out soon.

1.      Keep silent or you’ll wake the baby up.

2.       →If  …you don't keep silent , you’ll wake the baby up. …………..…..………

3.      Stop talking or you won’t understand the lesson.

→ If ……you don't stop talking,you won’t understand the lesson.….

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

Unless …she hurry,she'll be late…………………………………………….

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

Unless …you are careful,you’ll cut yourself………………

5. Unless she whispers, everyone knows what she is saying.

If ...she doesn't whisper ,everyone knows what she is saying.

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

6. Eat more vegetables and you will be healthier

If .......you eat more vegetables,you will be healthier.........................................

7. Pay  clean water  bill today or your  clean water will be cut off.

If .............you don't pay clean water  bill today ,your  clean water will be cut off..........................

8. Stop smoking otherwise your cough may be worse.

If .......you don't Stop smoking ,your cough may be worse........................

9. Unless we use less fossil fuel, they will be run out soon.

If .......we don't we use less fossil fuel, they will be run out soon.......................................

1.Keep silent or you’ll wake the baby up.

→ If you don't keep silent, you'll wake the baby up

2. Stop talking or you won’t understand the lesson. →If you don't stop talking, you won't understand the lesson

3. I don’t know her number, so I don’t ring her up. →If I knew her number, I would ring her up

4. I don’t know the answer, so I can’t tell you. → If I knew the answer, I would tell you

5. We get lost because we don’t have a map.

→ If we had a map, we wouldn't get lost

6. He loses his job because he is late every day. → If he wasn't late every day, he wouldn't lose his job

7. Peter is fat because he eats so many chips. → If Peter didn't eat so many chips, he wouldn't be fat

8. Robert got a bad cough because he started smoking cigarettes. → If Robert hadn't started smoking cigarettes, he wouldn't have got a bad cough

1 If you don't keep silent, you will wake the baby up

2 If you don't stop talking, you won't understand the lesson

3 If i knew her phone number, i would ring her up

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

5. If we had had a map, we wouldn't have got lost. 

6, If Susan hadn't eaten four cream cakes, she wouldn't have felt sick. 

7. If it hadn’t been for this treatment, the patient would have died.

8. If he hadn't been late every day, we wouldn't have lost his job. 

9. If he Peter didn't eat so many chips, we wouldn't be fat. 

10. If Robert hadn't started smoking cigarettes, he wouldn't have got a bad cough. 

REFER 1->10

Make conditional sentences:

1. Keep silent or you’ll wake the baby up. →If YOU DON'T KEEP SILENT , YOU WILL WAKE THE BABY UP……………………………………………..…..………

2. Stop talking or you won’t understand the lesson.→ If ………YOU DON'T STOP TALKING , YOU WON'T UNDERSTAND THE LESSON…………………………….....….…….

3. I don’t know her number, so I don’t ring her up.→ If I KNEW THE NUMBER, I WOULD RING HER UP…………………………………….....….……..

4. I don’t know the answer, so I can’t tell you.→ If ……I KNEW THE ANSWER, I COULD TELL YOU……………………………………….………..

5. We got lost because we didn’t have a map.→ If ……………WE HAD ……………HAD A MAP, WE WOULDN'T HAVE GOT LOST………….……..…….……

6. Susan felt sick because she ate four cream cakes. →……IF SUSAN HADN'T EATTEN FOUR FCREAM , SHE WOULDN'T HAVE FELT SICK………………………………………..……

7. Without this treatment, the patient would have died. →…IF HE HADN'T RECEIVED THIS TREATMENT, THE PATIENT WOULD HAVE DIED…………………………………….….…...

8. He lost his job because he was late every day. →……IF HE HADN'T BEEN LATE EVERYDAY, HE WOULDN'T…HAVE LOST HIS JOB………………………………………...……

9. Peter is fat because he eats so many chips. →…………IF PETER DIDN'T EAT SO MANY CHIPS,HE WOULDN'T BE FAT…………………………………………...…..

10. Robert got a bad cough because he started smoking cigarettes. →………IF ROBERT HADN'T STARTED SMOKING CIGARETTES, HE WOULDN'T HAVE GOT A BAD COUGH………………………..…..

11. She had her mother take care of her son when she went on a business trip

-> She had her son taken care of by her mother  when she went on a business trip

12. I don't have enough money, so i can't buy that printer

->  If I had enough money, I'd buy a new computer.

13. Because i didn't have her number, i didn't invite her to my wedding

->  If I had had her number, I could have invited her to my wedding.

1. Keep silent or you'll wake the baby up

-> If you don't keep silent, you'll wake the baby up

2. Stop talking or you won't understand the lesson

->If you don't stop talking, you won't understand the lesson

3. I don't know her number, so i don't ring her up

->If I knew her number, I would ring her up

4. I don't know the answer, so i can't tell you

->If I knew the answer, I could tell you

5. We got lost because we didn't have a map

->If we had had a map, we wouldn't have got lost

6. Susan felt sick because she ate four cream cakes

->If Susan hadn't eaten four cream cakes, she wouldn't have felt sick

7. Without this treatment, the patient would have died

-> If it hadn't been for this treatment, the patient would have died

8. He lost his job because he was late every day

-> If he hadn't been late everyday, he wouldn't have lost his job

9. Peter is fat because he eats so many chips

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

10. Robert got a bad cough because he started smoking cigarettes

-> If Robert hadn't started smoking cigarettes, he wouldn't have got a bad cough

11. She had her mother take care of her son when she went on a business trip

-> She had her son taken care of by her mother when she went on a business trip

12. I don't have enough money, so i can't buy that printer

-> If I had enough money, I could buy that printer

13. Because i didn't have her number, i didn't invite her to my wedding

-> If I had had her number, i would have invited her to my wedding