If you eat balanced meals, you will be healthy.
Unless you eat balanced meals, you won’t be healthy.
Unless you study hard, you are unlikely to pass the exam.
If you don’t study hard, you are unlikely to pass the exam.
If I can’t complete my project, I will stay at school to finish it.
Unless I complete my project, I will stay at school to finish it.
Unless we leave now, we will miss the bus.
If we don’t leave now, we will miss the bus.
If you haven’t done the job, you don’t understand how hard it is .
Unless you have done the job, you don’t understand how hard it is .
He won’t go to bed if you don’t tell him a story.
He won’t go to bed unless you tell him a story.
