Unless
If you haven't got a car, you will have to take the bus.
Unless you have a car, you will have to take the bus.
You press this button to stop the machine.
If you press this button, the machine stops.
I'm sorry but I can't help you now.
I wish I could help you now.
She is so careless!
If only she wasn't so careless.
If you don't sign up today, you can't go on the trip.
UNLESS you sign up today, you can't go on the trip
Danny wants to lose weight, but he doesn't have any willpower.
If Danny had some/any willpower, he would lose weight.
It was a mistake to go to England last winter.
I wish I hadn't gone to England last winter.
She should have called her parents earlier.
If only she had called her parents earlier
Peter gets angry with people who don't take him seriously.
Unless you take him seriously, Peter gets angry with you/with people.
My advice is that you must go to the doctor.
If I were you, I would go to the doctor.
He shouts so much, and it's so annoying!
I wish he wouldn't shout so much.
I really want you to stop smoking.
If only you would stop smoking.
I'll call the police if you don't leave me alone.
Unless you leave me alone, I'll call the police.
You didn't tell me in time. Otherwise I might have been able to help.
If you had told me in time I could have helped/might have been able to help.
It's a pity you don't like this food.
I wish you liked this food.
I really want a bigger car.
If only my car was bigger/I had a bigger car.
You will get sick if you keep eating.
Unless you stop eating, you will get sick.
The computer was stolen because nobody saw the thief.
If somebody had seen the thief, the computer wouldn't have been stolen.
What a pity Mary didn't remember to take the camera.
I wish Mary had remembered to take the camera.
I'm sorry I didn't meet you at the station.
If only I had met you at the station.