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:

(III) Electric utilities subject to the jurisdiction of a State regulatoryauthority must have such plan approved by such authority.
Because the customer must write, call, or e-mail these retailers with a specific purchase request, these firms are able to capture actual consumer demand rather than sales numbers alone.
It institued rounds and a "10-point must" scoring system.
No one told him, though, that he must first show his driver's license to the ticket agent.
(It hardly behooves me to complain, as there is an entry not only for VERBATIM but for URDANG, Laurence; besides, I must accept responsibility as contributor of a number of the entries, though, of course, I did not see the complete work till it was published.)