If you had listened to me, you wouldn't have got into so much trouble
If there were a screen on the window, there wouldn't be so many bugs in the room
If he weren't busy right now, he could help them
If I were good at cooking, I could make all of my own meals
If I were you, I could tell him the truth
If she had come, he wouldn't have been disappointed
If he had been a good student, he would study for the test yesterday
If I had eaten breakfast several hours ago, I would not be hungry now
If Mai had followed the doctor's orders, she would not be sick
If he had gone to bed early last night, he would not be tired this morning
If they behaved themselves, their parents would be happy about that
If she had said sorry, he would not have been angry
If I were a rich businessman, I could afford to buy an expensive car
If it hadn't rained last night, I would have gone to the barbecue
If my parents allowed me to go, I would not have to stay at home
If she paid attention to her cooking, the food would not be horrible
If the weather hadn't been very nice, we would have gone camping
If the computer hadn't broken down, I wouldn't have had to stop my work