If used with a negative infinitive it indicates obligatory … I must say, that is a … In this sense, must does not form a negative. · former las vegas raiders head coach jon gruden scored a significant legal win this week in his ongoing civil lawsuit against the nfl and commissioner roger goodell. You must pay your dues. To be compelled to in order to fulfill some need or achieve an aim: Must is a modal verb that expresses necessity, obligation, or strong recommendation. It is followed by the base form of a verb. You use must not or mustnt to … We must hurry if were to arrive on time. We usually use must to talk about obligations which come from the speaker and we generally use have (got) to when we refer to obligations that come from outside the speaker. A must is something thats so important it cant be missed or ignored. Must is a modal verb. You use must to indicate that you think it is very important or necessary for something to happen. When youre taking kayaking lessons, a lifejacket is a must. To be forced to, as by convention or the requirements of honesty: How to use must in a sentence. Used as an auxiliary to express obligation or compulsion: The meaning of must is be commanded or requested to. · las vegas — the nevada supreme court ruled monday that former raiders head coach jon gruden cannot be forced to participate in arbitration in his lawsuit with the …