Noun-Verb Agreement -- Help!

<p>1.) Today a medical doctor must often make a choice between engaging in private practice and engaging in research.</p>

<p>There is no error in this question, but how is "make" the proper verb for the singular "doctor"</p>

<p>We would say: "a medical doctor makes...", yet in this sentence the verb is "make"</p>

<p>I think it's because of the word must. If that was removed, it would be makes. But with it in, it's make.</p>

<p>Note that "must" is a helping verb.</p>

<p>Indeed, the complete verb is must make. It's a verb phrase, similar to did make or will make. In these examples, must and did and will are what in English are called auxiliary verbs or helping verbs.</p>