It does not always imply something bad; but, just conveys that a particular, statement or condition is false. "I don't have tohave faith. (I can stay in bed as long as I want.) What is the function of an imperative sentence? A good pizza ___ taste good. Must and Have To. Imperative sentences can be in positive or negative form, and can refer to present or future time. They have some very nice animals. Translator. Can you see the difference? The receptionist said, “You have to wait, the doctor must be on the way.”; You must take a stand for yourself, or else you have to follow others command. If he's not here in five minutes, I'm leaving. Examples We must fasten our seatbelts. This page provides example sentences of the verb "Have" in all tenses including active and passive forms, as well as conditional and modal forms. //-->. use "don't have to " in a sentence You don't have to think you aren't going to make it just because others have failed. There are things which you do not have a choice in, like wearing a uniform at school, for example. Log in Sign up. She has to wear a uniform.