Subject-Verb Agreement

A verb is to "agree" with its subject in number (singular or plural).

See the following resources:

Hacker, Diana. A Writer's Reference. 6th ed. Boston: Bedford, 2007.

pp. 163-171

G1 "Subject-verb agreement."

Harris, Muriel. Prentice Hall Reference Guide. 6th ed. Upper Saddle River, NJ: Pearson, 2008.

pp. 110-117

11 "Subject-Verb Agreement"