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1. If she hadn't been ill, she would have gone to school.

2. If I had a car, I wouldn't walk to work eeery morning.

3. If I had known it was her birthday, I would have bought her a present.

4. If you told him the truth, he would trust you.

5. If you hadn't been there with me, I wouldn't have had a good time.

6. If the old man hadn't given us clear directions, we would't have found the address.

7. If she didn't train hard, she wouldn't be a good player.

8. If Max knew about the subject, he could help.

9. If the critic had liked the film, she wouldn't have written a bad review.

Câu đk loại 2: If S V2/ed, S would (not) V (không có thật ở hiện tại)

Câu đk loại 3: If S had (not) V3/ed, S would (not) have V3/ed (không có thật ở quá khứ)