If they don't come here, we'll have to go there.
If you feel sick, you must stay in bed.
If you drink too much, you'll get drunk.
If they don't want to go out, they can stay home.
If you pay now, you'll get a discount.
If we don't hurry, we'll miss our bus
If you work hard, you may become a millonaire someday.
If she doesn't call you, you can call her.
If it rains today, I'll stay at home