list of Collocations provided officially by Pearson Collocations   V1 = plural verb, V5 = singular verb have = plural, has = singular Subjects and verbs must agree in number. In addition to the explanations on this page, also see the post on Subject-Verb Agreement. Simply, the number of  verb must match its number of subjects. V 1  = plural ,  V 5  = singular   1.       If the subject is singular, the verb must be singular too. Example:  She   writes  every day. 2.       If the subject is plural, the verb must also be plural. Example:  They   write  every day. Strategy 1: 1). After "the",  "a",  "an"  noun appears. 2). After  "a",  "an"  singular noun appears. ( "A" is used before nouns that begin with  consonant sounds. "An" is used before nouns that begin with vowel sounds .) 3). After "the" singular or plural  noun appears....