I would have met you yesterday If you had warned me.
If you hadn't sneezed, I wouldn't even know you were there.
you wouldn't be in trouble if you followed all the instructions
if it wasn't for the weather, we would have had a great summer
if there's no lesson, we'll go home.
You would be great now if you went to the doctor yesterday
If he had entered the Institute 4 years ago, he would have graduated
If he refuses, I'll try to convince him.
If it wasn't for the scar on his face, I wouldn't recognize him.
If it wasn't for you, I'd be home right now.