has vs have on a singular noun that represents a plural idea
29197
Does a percentage quantity take singular or plural verb agreement?
246
Agreement in "[Singular Noun] Is/Are [Plural Noun]"?
23936
Is it appropriate to use short form of "have" ('ve) when it means possession?
128236
Singular vs. Plural with Multiple Gerunds as Subject (IE: [Gerund] and [Gerund] are/is [something].)
8144
When are attributive nouns plural?
124981
About pronouncing the 's' in plural nouns
102159
“Has been” vs. “was”
24253
"occur" vs "occurs" with a singular collective noun
88108
Can we use "there is" for plural nouns?
90999
Singular to plural noun
49566
Is "singular noun + and + singular noun" singular or plural?
101685
Singular noun objects of plural subjects
124970
"Some" — singular vs plural
6083
Nouns of plural form preceding another noun
70240
What is the difference between a "singular noun" and a "plural noun treated as singular"?
137339
"Has/Have/Had" as a main verb and auxiliary verb
90495
Have lived vs. Have been living