If we had had a map, we wouldn't have got lost
If Mr. Mils were early every day, he wouldn't lose his job
If John didn't eat so many chips, he wouldn't be fat.
If I knew the answer, I could tell you
Unless you work hard, you will fail the exam
Unless you don't go out often, you will fail in
If he doesn't phone immediately, he won’t get any information.
If we have enough money, we will go on holiday
If we had a map, we wouldn't get lost
If I had known your number, I would have rung
If she had known you were in hospital, she would have visit you
If she didn't work in the evening, she would have time to play with her children
If it weren't very cold, we would go swimming
If you make me some coffee, I will give you one of my biscuits
If you ask the teacher, he will explain the lesson to you
If you don't work hard, you will fail the coming exams