Digital SAT · Form, Structure & Sense
How to Solve Subject-Verb Agreement on the Digital SAT
The choices are the same verb in different numbers, and you match it to the subject. The catch is that the subject is usually separated from the verb by a phrase, so you cannot just grab the nearest noun. Strip the interrupters, find the true subject, and decide whether it is singular or plural. Watch for collective nouns, inverted sentences, and prepositional phrases that plant a decoy noun right before the blank.
- per test
- 2 per test per test
- typical difficulty
- Medium typical difficulty
- practice questions
- 176 practice questions
Frequency reflects how often this question type appears on a full-length Digital SAT. The difficulty mix reflects every question of this type across our bank.
What the question bank shows
An interrupting phrase usually sits between subject and verb, planting a decoy noun.
The options are one verb in singular and plural forms, so only agreement is being tested.
These stems are compact; stripping the interrupter resolves them fast.
How to recognize subject-verb agreement questions
- The four choices are the same verb differing only in number or tense.
- A phrase separates the subject from the verb.
- The sentence may open with a there is or here are inversion.
- The nearby noun and the true subject differ in number.
Why students miss these
The step-by-step method
- 1
Cross out the interrupters
Bracket prepositional phrases and clauses between the subject and the verb.
- 2
Find the true subject
Identify the noun actually doing the verb, even if it sits far from the blank.
- 3
Decide singular or plural
Judge the subject's number, treating collective nouns as singular unless the parts act separately.
- 4
Match the verb
Pick the choice whose number agrees with that subject.
Worked examples
Easy example
My grandmother carefully saved mementos from nearly every important stage of her long life. High on a shelf in her hallway closet, a worn box of old photographs ______ beside a tall stack of handwritten letters and faded color postcards.
A: Correct. The subject is the singular noun 'box,' so the singular verb 'sits' agrees with it.
B: Incorrect. 'Sit' is plural, but the singular subject 'box' requires a singular verb.
C: Incorrect. 'Are sitting' is plural; the singular subject 'box' does not agree with a plural verb.
D: Incorrect. 'Have sat' is plural and present perfect; the singular subject 'box' needs a singular verb.
Explanation
Ignore 'of old photographs'; the subject is the singular 'box,' which takes the singular verb 'sits.'
Easy example
The Amazon ranks as the largest river system anywhere on Earth, measured by its sheer water volume. Winding through the rainforest, the immense network of its tributaries ______ an astonishing variety of fish found nowhere else on the entire planet.
A: Incorrect. 'Harbor' is plural, but the singular subject 'network' requires a singular verb.
B: Incorrect. 'Are harboring' is plural; the singular subject 'network' cannot take a plural verb.
C: Correct. The true subject is the singular noun 'network'; the phrase 'of its tributaries' only describes it, so the singular verb 'harbors' is correct.
D: Incorrect. 'Have harbored' is plural, so it does not agree with the singular subject 'network.'
Explanation
The subject is the singular noun 'network,' separated from its verb by 'of its tributaries.' A singular subject needs the singular verb 'harbors.'
Easy example
The Galapagos tortoise, native to a remote chain of Pacific islands, is one of the longest-lived animals on Earth. A herd of these gentle reptiles, moving only when necessary, ______ across the dry lowlands in search of fresh grass and shade.
A: Incorrect. 'Wander' is a plural verb form, but the singular subject 'herd' requires a singular verb.
B: Incorrect. 'Are wandering' is plural; the singular subject 'herd' does not agree with a plural verb.
C: Incorrect. 'Have wandered' is plural and present perfect; the singular subject 'herd' needs a singular verb.
D: Correct. The true subject is the singular collective noun 'herd,' so the singular verb 'wanders' agrees with it.
Explanation
Strip away 'of these gentle reptiles'; the subject is the singular 'herd,' which takes the singular verb 'wanders.'
The common traps
| Pattern | What it does | The tell |
|---|---|---|
| Agreed with the nearest noun | Matched the verb to a decoy inside an interrupting phrase. | Cross out the phrase and check the number of the real subject. |
| Missed an inversion | Let a there is or here are opening hide a plural subject. | Flip the sentence to normal order to see the subject clearly. |
| Mishandled a collective | Treated a group noun as plural when it acts as one unit. | A team, a group, or a committee is usually singular. |
Try it: two real questions
The Komodo dragon is the largest living species of lizard on Earth. Fast and powerful, it is a formidable predator. The muscular tail of these enormous reptiles ______ nearly as long as the body and can knock a deer off its feet with a single swing.
Which choice completes the text so that it conforms to the conventions of Standard English?
The novelist Octavia Butler often deliberately blurred the boundary between science fiction and social commentary. Each of the interlinked stories in her celebrated late-career collection, which critics frequently compare to a single sprawling novel, ______ a different facet of the same richly imagined future society.
Which choice completes the text so that it conforms to the conventions of Standard English?
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Related reading
Common questions
How do you check subject-verb agreement on the SAT?
Cross out any phrase between the subject and the verb, find the noun actually performing the action, decide if it is singular or plural, and pick the matching verb. The nearest noun is often a decoy.
Why is the subject so hard to find?
The sentence usually inserts a phrase before the verb whose last noun differs in number from the real subject. Removing that phrase makes the true subject and its number clear.
Are collective nouns singular or plural?
Usually singular on the SAT. A team, a group, or a committee acts as one unit and takes a singular verb, unless the sentence stresses the members acting separately.
How do inverted sentences change things?
In there is and here are constructions the subject follows the verb. Rearrange the sentence into normal order to see whether that subject is singular or plural before choosing.
Practice subject-verb agreement the way it is tested
Start with the free 16-question diagnostic, then drill this type with step-by-step reasoning on every question.
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