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16 Grammar Rules - Subject-Verb Agreement
Subject = Singular, Verb = Singular. Subject = Plural, Verb = Plural
'And' = compound subject. Compound Subject = plural = plural verb.
Subject = back of a sentence
Subject and Verb separated by appositives - ignore and look if they are in agreement. If not, check the other parts of the sentence.
Either - or, Neither - nor sentences - 2nd subject = singular, Verb = singular. 2nd subject = plural, Verb = plural
Noun and Number agreement
With, along with, in addition to, as well as - DO NOT change original number of subject
Be careful of: _ of _ - Real subject is before the word of
Each, either, neither, every(one/body), no (one/body) = singular
Both, several, many are usually plural
Collective nouns are singular
A number of = plural, The number of = singular
Subjects - singular or plural depending on context
"There is" - alters normal word order and confuses