Here are five sentences from the book I used in all my business writing seminars, The Bare Essentials, by Norton, Green and Barale.
Before you take the quiz, remember that the only word that adds and makes a subject plural is AND. Decide if the sentences are correct as written or if a problem exists with subject-verb agreement. Explanations follow the sentences.
1. A handful of companies dominate the American cereal industry.
2. Have either of the teams won a series yet?
3. Experience in programming, together with a willingness to work hard and an ability to get along with others, are required.
4. Absolutely everyone, my girlfriend and my mother included, not to mention my closest friends, have advised me not to pursue a musical career.
5. It is not necessarily true that statements made about one identical twin applies with equal validity to the other.
All those sentences are incorrect. Here are the explanations:
1. The subject is “handful,” so the verb has to be “dominates.” “Of companies” is a prepositional phrase; the subject of a sentence is never found in a prepositional phrase</em>, even though most of them contain a noun (and sometime a pronoun) at the end that may look like a subject. But they never are.
2. “Either of the teams” refers to one team or the other but not both. “Of the teams” is a prepositional phrase. The singular subject is the pronoun “either.” The verb must be “Has.”
3. The subject is “Experience,” so the verb must be “is required.” After “Experience,” the sentence is packed with prepositional phrases and none of the nouns in them can be part of the subject.
4. The subject is “everyone.” That is always singular, so the verb has to be “has advised.”
5. The subject is “statements,” a plural, so the verb must be “apply.”
How did you do? Write me if you have questions.