How do you make a verb agree with its true subject, especially when words come between them?
Subject-verb agreement: finding the true subject, ignoring intervening phrases, and matching a singular or plural verb, including with collective nouns and inverted sentences, on Digital SAT form questions.
A focused answer to the Digital SAT subject-verb agreement skill: identifying the true subject past intervening phrases, handling collective nouns and 'each/every,' and matching the verb's number, with inverted and there-is sentences.
Reviewed by: AI editorial process; not yet individually human-reviewed
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What this skill is asking
A subject-verb agreement question tests whether a verb correctly matches its true subject in number (singular or plural). On the Digital SAT, the College Board (Standard English Conventions domain, form, structure and sense) places words between the subject and verb to obscure the match, or inverts the sentence so the subject comes after the verb. The skill is to find the true subject, ignore the distractions, and choose the verb that agrees with it.
Find the true subject
The whole question turns on identifying the true subject, which is often not the noun closest to the verb. Strip away the intervening words and the subject becomes clear.
The classic distractor is a prepositional phrase between the subject and the verb, ending in a noun of the opposite number. "The list of items is long," not "are long," because the subject is "list," not "items."
Tricky subjects
Several subject types catch test takers out, and the SAT tests them deliberately.
Compound and either-or subjects
Two more cases complete the picture. A compound subject joined by and is usually plural ("the cat and the dog are asleep"). But a subject joined by or or nor agrees with the nearer part: "neither the manager nor the employees were informed" (plural, because "employees" is nearer), while "neither the employees nor the manager was informed" (singular). On the SAT, watch the word that joins the subjects, because "and" and "or" behave differently. A quick check for any agreement question is to read the subject and verb together with the middle words removed: "the box... has sat," "each... has," "neither the manager nor the employees... were." Stripping the sentence to its bare subject and verb exposes the match instantly, which is why the labelling habit beats trusting your ear, since the ear is exactly what the intervening plural noun is designed to fool. This skill is the foundation of the form, structure and sense cluster: once you reliably find the true subject, agreement, and many tense questions, fall into place.
Exam-style practice questions
Practice questions written in the style of College Board exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Digital SAT R&W (style)1 marksWhich choice makes the verb agree with its subject? 'The box of old photographs and letters ____ in the attic for decades.' (A) have sat (B) has sat (C) were sitting (D) sitShow worked answer →
The correct answer is (B), has sat.
The true subject is "box" (singular); "of old photographs and letters" is a prepositional phrase that does not change the subject's number. A singular subject takes a singular verb: "The box... has sat." Choices (A), (C) and (D) are plural verbs that agree with the nearby plural "photographs and letters," but those are inside a phrase, not the subject. Find the true subject past the intervening phrase.
Digital SAT R&W (style)1 marksWhich choice makes the verb agree? 'Among the many discoveries of the expedition ____ a new species of frog.' (A) were (B) are (C) was (D) have beenShow worked answer →
The correct answer is (C), was.
This sentence is inverted: the subject comes after the verb. The true subject is "a new species of frog" (singular), so the verb is singular: "...was a new species of frog." The plural "discoveries" sits in the opening phrase and is not the subject. Choices (A), (B) and (D) are plural and agree with the wrong noun. Uninvert the sentence to find the subject: "A new species of frog was among the many discoveries."
Related dot points
- Verb tense and form: keeping tense consistent with the passage's time frame, using the perfect tenses for sequence, and distinguishing finite verbs from participles on Digital SAT form questions.
A focused answer to the Digital SAT verb tense and form skill: matching tense to the time markers in the passage, using past perfect for an earlier past event, and choosing a finite verb rather than a participle when the sentence needs one.
- Pronoun agreement and clarity: matching a pronoun to its antecedent in number, choosing the right case, and avoiding ambiguous or missing references on Digital SAT form questions.
A focused answer to the Digital SAT pronoun skill: matching a pronoun to its antecedent in number, using the correct case, and keeping references unambiguous, including singular antecedents like 'each' and the its/it's and who/whom distinctions.
- Modifier placement: ensuring an introductory or descriptive modifier sits next to the word it describes, and fixing dangling modifiers by naming the right subject, on Digital SAT form questions.
A focused answer to the Digital SAT modifier skill: making an introductory modifier describe the noun that immediately follows, recognising dangling and misplaced modifiers, and fixing them by putting the right subject next to the modifier.
- Parallel structure and comparisons: matching the grammatical form of items in a list or with correlative conjunctions, and ensuring a comparison compares logically comparable things, on Digital SAT form questions.
A focused answer to the Digital SAT parallelism skill: making list items and correlative pairs share the same grammatical form, and making comparisons logical by comparing like with like, with worked short-passage practice.
Sources & how we know this
- Reading and Writing: Content Domains and Skills — College Board (2024)
- Digital SAT Sample Questions — College Board (2024)