Quick Answer
Subject-verb agreement is a grammatical rule requiring that a sentence's subject and verb match in number. On the Digital SAT, this concept is tested within the Standard English Conventions category, typically appearing in approximately 2–4 questions per Reading and Writing section to assess syntactical precision.
Subject-verb agreement dictates that a singular subject must be paired with a singular verb form, while a plural subject requires a plural verb form. In the present tense, this usually involves determining if the verb requires an '-s' suffix for singular subjects or the base form for plural ones.
Question: The collection of rare manuscripts, which includes several first editions from the eighteenth century, _____ currently on display at the university library. A) are B) is C) being D) were Solution: The correct answer is B. The subject is 'collection' (singular), not 'manuscripts' or 'editions'. Therefore, the singular verb 'is' is required.
The Proximity Error: Students often mistakenly match the verb to the noun physically closest to it, especially when a plural noun appears inside a prepositional phrase just before the verb.
Indefinite Pronoun Confusion: Many students assume words like 'everyone,' 'each,' or 'neither' are plural because they refer to multiple people, but the SAT treats these as strictly singular.
Compound Subject Misinterpretation: Students may forget that subjects joined by 'and' are always plural, while subjects joined by 'or' or 'nor' must agree with the noun closest to the verb.
Students targeting 750+ should know that the SAT often uses 'inverted sentences' where the verb precedes the subject, or uses collective nouns that appear plural in meaning but are grammatically singular, requiring a disciplined identification of the true grammatical subject rather than relying on how the sentence sounds.
Fragment
A fragment is a group of words that lacks an independent clause, failing to express a complete thought. On the Digital SAT, fragments are frequently tested within the Reading and Writing section under 'Boundaries' questions. Typically, these appear 2–4 times per exam, requiring students to identify and correct incomplete sentence structures.
Independent Clause
An independent clause is a grammatical unit that contains a subject and a verb and expresses a complete thought. On the Digital SAT, this concept is frequently tested in the Reading and Writing section, particularly within Standard English Conventions questions. Students must often distinguish between independent and dependent clauses to avoid punctuation errors like comma splices.
Parallel Structure
Parallel structure is a grammatical requirement on the Digital SAT where words or phrases in a series must share the same grammatical form. This concept typically appears in the Standard English Conventions questions of the Reading and Writing modules, appearing approximately two to four times per test to ensure syntactical consistency.
Pronoun-Antecedent Agreement
Pronoun-antecedent agreement is a core grammar rule tested on the Digital SAT Reading and Writing section. It requires that every pronoun matches its antecedent in number and person. Typically appearing in Standard English Conventions questions, this concept is tested approximately 2-4 times per exam to ensure grammatical clarity and logical consistency.
Verb Tense
Verb tense refers to the timeframe of an action expressed by a verb. On the Digital SAT Reading and Writing section, these questions typically appear within 'Form, Structure, and Punctuation' tasks. Students must ensure that verbs remain consistent with the passage's established timeframe and surrounding grammatical context to ensure logical flow.
Subject-verb agreement on the SAT is a core grammar rule requiring that the subject and the verb of a sentence match in number. If the subject is singular, the verb must take its singular form; if plural, the verb must be plural. This concept is primarily tested in the Reading and Writing section as part of the Standard English Conventions questions.
To identify subject-verb agreement, first locate the main verb in the sentence and ask 'who or what' is performing that action to find the subject. You should mentally cross out any intervening prepositional phrases or parenthetical information between the subject and the verb. Once the core subject is isolated, determine if it is singular or plural to select the matching verb form.
While subject-verb agreement ensures the verb matches the subject in number, pronoun-antecedent agreement ensures that a pronoun matches the noun it refers back to in both number and gender. Subject-verb agreement focuses on the relationship between a doer and an action, whereas pronoun-antecedent agreement focuses on the consistency of nouns and the pronouns that replace them throughout a passage.
You can typically expect to encounter approximately 2 to 4 questions specifically targeting subject-verb agreement within each Reading and Writing module of the Digital SAT. Because it is a foundational rule of Standard English Conventions, it is one of the most frequently appearing grammar topics on the exam, making it a high-priority concept for students to master.
