1.She'd live in London if she knew anyone there.

2.If i could find a job here, I would live in the country

3.Unless you have a spare ticket, you can take you to the concert.

4.If they don't understand the question, they won't find a solution

5.If he sits around too much, he won't be fit

6.If he polished his shoes, he would look smart

7.If he could park near his office, he would come by car

8.If she didn't work in the evening, she would have some time to play with her children.

9.If he saw the signal, he would stop his car

10.If Peter prepared his lesson well, he wouldn't get bad marks.

11.If you don't go right now, you'll be late for the train.

12.If he had enough qualifications, he would apply for the job.

_Công thức câu ĐK loại 1: If + S + V(s;es), S + will + V

_Công thức câu ĐK loại 2:If + S + Vpast, S + would + V