1. If we miss the bus,we will take the taxi

Unless we  miss the bus,we will not take the taxi

2.I will give you a lift if you don't have a bicycle

Unless you have a bicycle, I will give you a lift 

3.Unless he wins the money,he won't have enough money to pay his bills

If he doesn't win the money,he won't have enough money to pay his bills

1. If my brother has enough money, he will buy a bicycle

2. If i buy a new hat, i will give to you.

3. If you ask the teacher, he will explain the lesson to you

1.If my brother has enough money,he will buy a bicycle

2.If i  buy a new hat,i will give to you

3.If you ask the teacher,he will explain the lesson to you

1/ If I buy a new hat, I ( give)will give my old hat to you.

2/ If today (be)were Sunday, the pupils (can go) could go swimming.

3/ If he ( be)had been here last night, he ( have)would have had a lot of fun.

4/ My brother ( have)had enough money, he ( buy)would buy a bicycle.

5 / If he (not fall)hadn't fallen off his bike 2 days ago, he (participate ) would have participated in the soccer match.

6. If she (not miss)hadn't missed the bus, she (not be) wouldn't have been late for the meeting.

7. If Peter (study)studied hard, he could get good marks.

8. If my sister (not have) didn't have a terrible headache she wouldn’t be absent from her class.

1. I don’t buy it because I don’t have enough money.

----> If I HAD ENOUGH MONEY, I WOULD BUY IT.

2. I don’t go out it because I don’t have time.

----> If I had time, I would go out.

3. He will go out. He will buy some bread.

----> If he buy some bread, he will go out.

4. I’m busy right now, so I can’t help you.

----> If I weren't busy now, I could help you.

5. He’s very thin, that’s why he feels the cold so much.

----> If her weren't very thin, he wouldn't feel the cold so much.

6. I don’t have breakfast, so I am hungry now.

----> If I had breakfast, I wouldn't br hungry now.

7. If John played for our football team, we would not lose the game.

----> Unless John played for out football, we would lose 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'll bring you another.

10. I’ll only help you if you promise to try harder.

----> Unless you promise to try harder, I won't help you.

11.If she doesn’t work harder, she’ll lose her job

--> Unless she works harder, she'll lose her job.

1,If you want my advice, I wouldn't buy it

If I....I were you, I wouldn't buy it......

2, I only come if they invite me

Unless...they invite me, i won't come

3, The park is over there, only 5 minutes' walk

If you walk...to the park, it will take you 5 minutes

4, Today isn't sunnday. The pupils can't go swimming

If....today were sunday, the pupils would go swimming

5, He wasn't here. He didn't have a lot of fun

If.....he has been here, he would have hada lott of fun

6, He didn't have time. He didn't read this novel

If...he has had time, he would have read this novel

7, Peter doesn't study hard, so he can't get good marks

If... Peter studied hard he could get good marks

8, My sister is absent from her classs because she has a terrible headache

If... my sister didn't have a terrible headache she would be absent from her class

9. Windy didn't come, so we cancelled the meeting

if... windy had come we wouldn't have canceled the meeting

10, He was angry, so he didn't say anything

if....he hadn't been angry, he would have said something

11. My brother will have enough money. He will buy a bicycle

If...​my father has enough money he'll buy a bicycle

1. The boy doesn't have enough books. He refuses to go to school.

→ If the boy had enough books, he wouldn't refuse to go to school.

2. When they have enough money, thet will buy a terraced house.

→ If they have enough money, they will buy a terraced house.

3. My grandmom won't get better without this treatment.

→ If my grandmom doesn't receive this treatment, she won't get better.

4. He won't attract more fans without a new look.

→ Unless he gets a new look, he won't attract more fans.

5. Practice more and you'll be good at speaking English.

→ If you practice more, you'll be good at speaking English.

6. Do your homework or you'll get punished.

→ If you don't do your homework, you'll get punished. 

→ Unless you do your homework, you'll get punished.

7. When she makes a lot of money, she'll more to a new house.

→ If she makes a lot of money, she'll move to a new house.

8. People burn more fossil fuels. The global warning will be more serious.

→ If people burn more fossil fuels, the global warming will be more serious.

9. The move we use smart phones, the worse our social life becomes.

→ If we use smart phones more, our social life becomes worse.

10. You want to widen your horizon. You need to read more books.

→ If you want to widen your horizon, you need to read more books.

1 If my mother has enough money, she will buy a new house

2 If he gét up late, he feels tired

3 If Henry finishes the report, he will go out for a walk

4 If you do the homework for me, I'll give you a gift

5 If I watch TV, I feel relaxed

11. Be quiet or the teacher will be angry.=>If…you aren't quiet, the teacher will be angry ……………………………………………………………………..

12. I don't tell him the answer because he isn't at home.

=> If ……he were at home, I would tell him the answer…………………………………………………………………..

13. My friend and I don't have enough money, so we will not buy a house of our own.

=> If …………My friend and I had enough money, we would buy a house of our own. ……………………………………………………………..

14. Unless the weather is better now, we can't go for a walk.

=> If ……the weather isn't better now, we can't go for a walk. …………………………………………………………………..

15. Because I don't know his address, I don't give it to you.

=> If ……………I knew his address, I would give it to you. …………………………………………………………..