Words similar to must

Example sentences for: must

How can you use “must” in a sentence? Here are some example sentences to help you improve your vocabulary:

To understand why gene duplications represent the major ‘opportunities’ from which new genes evolve, we must first consider what constrains genic evolution.
Blair declared that "we must be pure," and Labor leaders floated a proposal to ban contact between lobbyists and top government officials.
They must have some more sophisticated point in mind."
[N]ot attempt an unachievable comprehensiveness is a marvelous quotation that I must borrow for my next book, review, article, or comment on the parlous state of the world, and I shall now be able to preface it with, In the words of Nigel Rees ...
My fascination here is not that one must take any particular meaning from the play of the two stories, but that, as with a work of art, one can.