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Are Subjects Joined by “And” Singular or Plural? – Grammar Rules

Categories: Brian Klems' The Writer's Dig Tags: Brian Klems.

subjects-joined-by-andQ: I’m writing a letter and am uncertain whether subjects joined by and should be singular or plural. So which sentence is correct: Your passion and commitment to my company HAVE inspired many, or, Your passion and commitment to my company HAS inspired many?  —Carrie G.

This kind of thing used to trip me up, too, as a subject with multiple nouns in it seems like it should always be plural. But that isn’t always the case. The way you group the items determines whether it’s a singular subject or a plural subject (and whether you’d use the plural verb have or the singular has). Let me explain.

Sentence subjects that have independent nouns connected by and are plural, thus requiring plural verbs (such as have). One trick to tell if the nouns are independent from each other is to divide the sentence into two sentences and see if the meaning stays the same. For example: The baseball players and the manager were disappointed after losing the big game. When divided, the sentences read: The baseball players were disappointed after losing the big game. The manager was disappointed after losing the game. The meaning is the same and these nouns are thus independent of each other, making the original sentence a plural sentence and requiring a plural verb (were).

Let’s apply this trick to the sentence in question, Your passion and commitment to my company have inspired many. It can be divided into two sentences and keep the same meaning (Your passion to my company has inspired many; your commitment to my company has inspired many), therefore it’s plural and requires the plural verb have.

Not all subjects using and to connect nouns are plural, though. Sentence subjects that have multiple nouns connected by and that refer to a singular thing require singular verbs. Consider, Green eggs and ham was Sam-I-Am’s favorite dish. In this sentence, green eggs and ham is one specific dish in and of itself, so you use the singular verb was. If you divide this sentence (Green eggs was his favorite dish/Ham was his favorite dish) you change the meaning—and Sam-I-Am would be pretty disappointed if you had him over for dinner and served only half of his favorite meal.

When in doubt, divide the sentence to see which verb you need. It will help you on your grammatical quest toward subject/verb agreement.

X3961_GrammarDesk.jpgWant other Grammar Rules? Check out:
Sneaked vs. Snuck
Who vs. Whom
Lay vs. Lie vs. Laid 
Which vs. That
Since vs. Because
Ensure vs. Insure
Home in vs. Hone in
Leaped vs. Leapt

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Brian A. Klems is the online editor of Writer’s Digest and author of the popular gift book Oh Boy, You’re Having a Girl: A Dad’s Survival Guide to Raising Daughters.

Follow Brian on Twitter: @BrianKlems
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2 Responses to Are Subjects Joined by “And” Singular or Plural? – Grammar Rules

  1. Mertz says:

    That’s actually a very arrogant thing to say. Some of us are relearning our grammar rules as we are just starting the writing game. What they say is true, use it or lose it, and this applies to everything, especially grammar rules. I was out of school (college), for over 13 years before I started writing. My degree isn’t in English or Creative Writing, therefore I am relearning everything. I love articles such as these, they help me quite a bit.

    Please keep them coming!

  2. digidanno says:

    Long ago we used the term “grammar” school to indicate grades one through six because during those years scholars were supposed to master the fundamentals of grammar. When I read a question like this one from a prospective writer I’m more certain than ever that our educational system has tanked.

    Your explanation is excellent and should serve prospective writers well, but singular/plural antecedent usage is basic stuff. If the OP is an ESL writer, a couple of years with the WD Grammar Desk Reference is in order (assuming “couple of years” as a singular group). :P

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