Have to is NOT an auxiliary verb (it uses the verb have as a main verb). We include have to here for convenience. Must is a modal auxiliary verb. In this lesson we look at have to, must and must not, followed by a quiz to check your understanding. have to for objective obligation. We often use have to to say that something is obligatory, for ...
MUST: HAVE TO: The speaker thinks it is necessary, or it is the rule. The obligation comes from an external source. ♦ I must buy flowers for my mother. (It's her birthday and I decide to do that.): ♦ I have to buy flowers for my mother-in-law. (It is not my decision - …
In general, Have to is more frequent in conversation (or spoken English) than Must. Must is used more in formal writing, especially in written notices, rules or ...
We use have to / must / should + infinitive to talk about obligation, things that are necessary to do, or to give advice about things that are a good idea ...
Must vs. have to. Both Must and have to express obligation or necessity, but there are some small differences: • Must expresses the speaker's feelings, whereas have to expresses, above all, an impersonal idea: You must come. You are obliged to come (I require that you come) You have to come. You are obliged to come.
19.10.2018 · How to Use Must, Have to, and Need to in English. "Must," "have to," and "need to" in the positive or question form are used to speak about …