1) I’ll call the teacher if you don’t leave me alone.
Unless you leave me alone, I will call the teacher.
2) When you ask me for the car, I will lend it to you.
Unless you ask me for the car, I won’t lend it to you.
3) Don’t go out in the rain because you will get wet.
If you go out in the rain, you will get wet.
4) Walk faster or you will miss the bus.
If you don’t walk faster, you will miss the bus.
5) I won’t enjoy the film if you aren’t with me.
Unless you are with me, I won’t enjoy the film.
6) You must leave home early or you will miss the flight
If you don’t leave home early, you will miss the flight.
7) John will pass the driving exam if he isn’t nervous
Unless John is nervous, he will pass the driving exam.
8) They will go on holiday if they have time.
Unless they have time, they won’t go on a holiday.
9) You have to get up early or you will be late for school.
If you don’t get up early, you will be late for school.
10) He will take a taxi if it rains.
Unless it rains, he won’t take a taxi.