1. If loại 3, vế sau là would have + v3(got)

    If you had arrived ten minutes earlier, you would have got a seat

2. If loại 1, vế sau là can + V1 (pass)

    If he studies harder, he can pass an exam.

3. If loại 1, may + V1 (be)

    She may be late if she is not hurry

4. If loại 1, V1 (tell)

    Tell him to ring me if you see him

5. If loại 3, might have + V3 (understood)

    If you had spoken more slowly, he might have understood you,

6. If loại 2, if + S + V2(got)

    What would you do if you got fat ?

7. If loại 1,If + S + V1 (be - are)

    If you are kind to me, I am good to you

8. If loại 2, if + S + V2(waited)

    He would come if you waited.

9. Loại 2, would + V1(come)

    If you rang the bell, the servant would come.

10. Loại 3, If + S + had +V3(known)

    If I had known that the baby was hungry, I could have fed him.

11. Loại 2, S + wouldn't V1(grow)

    If it did not rain a lot, the rice crop wouldn't grow.

12. Loại 2, wouldn't + V1 (have)

    If today were Sunday, we wouldn't have to work.

13. Loại 3, S + had + V3 (had)

    If she had had your address, she should have written to you.

14. Loại 3. Vì (we lost the match - quá khứ). Câu điều kiện loại 3 là câu điều kiện không có thực trong quá khứ, chỉ mang tính ước muốn.

    We lost the match. If you had played for us, we would have 

15. Unless = if ... not

    They would not be paid unless they did their work well.

16. Loại 1, If + S + V1(see)

    If I see him, I will give him a lift.

17. Loại 1, will + V1( collapse)

    The table will collapse if you stand on it

18. Loại 1, will + V1(be)

    If he eats all that, he will be ill.

19. Loại 1, If + S + V1(find)

    If I find your passport, I will telephone you at once.

20. Loại 1, If + S + V1(catch) 

    The police will arrest him if they catch him.

21. Loại 1, will + V1(ruin)

    If he reads in bad light, he will ruin his eyes.

22. Loại 1, If + S + V1(leave)

    Someone can steal -your car if you leave it unlocked.

23. Loại 1, will + V1(happen) 

    What will happen if my parachute doesn't open?

24. Loại 1, will + V1(give)

    If he washes my car, I'll give him J10.

25. Loại 1, can + V1(borrow)

    If she needs a radio, she can borrow mine