SAT Subject-Verb Agreement: Find the Main Subject

“The collection of handwritten maps ___ a record.” The main subject is the singular “collection.” Removing “of handwritten maps” leaves “The collection provides a record.” The nearby plural “maps” does not control the main verb.

By contrast, “The maps in the collection provide a record” has the plural subject “maps.” The grammatical role changes even though the same nouns appear.

A choice may fail through “has/have” or “is/are,” even if the main participle looks the same. Agreement does not determine tense by itself; context must establish the time relationship.

Two distinct subjects joined by “and” normally take a plural verb: “The notebook and the map are missing.” With “or” or “nor,” agreement commonly follows the nearer subject in constructions such as “Neither the notebooks nor the map is missing.” Recast the full sentence mentally to avoid matching only the first noun.

“Each of the maps is labeled” uses the singular subject “each.” “Several of the maps are labeled” uses plural “several.” The noun in the “of” phrase does not override the main subject.

“Beside the cabinet are two notebooks.” The location phrase is not the subject; the plural “two notebooks” is. Reordering gives “Two notebooks are beside the cabinet.” Similarly, “There is one map” and “There are three maps” depend on the noun phrase, not on “there.”

Check 1: “The results of the second experiment ___ consistent.” Choose “are” because “results” is plural.

Check 2: “Each of the new devices ___ a separate battery.” Choose “has” because “each” is singular.

Work through the collection-of-maps question to inspect the main method, a pronoun-substitution check and the reason each competing choice fails.