SAT Form, Structure, and Sense: Practice Questions & Study Guide
Applying correct verb tense, subject-verb agreement, pronoun-antecedent agreement, modifier placement, and parallel structure to produce grammatically precise sentences.
Understanding Form, Structure, and Sense
Form, Structure, and Sense covers conventions that keep a sentence internally consistent and logically coherent: verb forms, subject-verb agreement, pronoun usage, modifier placement, and parallel structure. Unlike a pure punctuation check, some items require the surrounding context to establish timeline or meaning.
For subject-verb agreement, isolate the grammatical subject from intervening phrases. In 'The results of the decade-long study on urban heat islands [was/were] published,' the subject is the plural noun 'results,' so the verb is 'were.' Crossing out the prepositional phrase exposes that relationship.
For verb tense and form, reconstruct the passage's timeline from time markers and other verbs. A past event completed before another past event may call for past perfect; a general scientific statement may call for simple present.
For a pronoun, identify a clear antecedent and check number and person. For a modifier, make sure the phrase sits next to the word it describes. For parallel structure, keep items in a list or compound construction in the same grammatical form.
Key Rules & Formulas
Memorize these rules — they come up directly in practice questions.
Cross out intervening phrases to identify the true subject before checking verb agreement.
'The bouquet of tulips and lilies [needs/need] to be arranged.' Cross out 'of tulips and lilies'—subject is 'bouquet' (singular), so 'needs' is correct.
Pronouns must match their antecedents in number—collective nouns (team, committee, company) are typically singular on the test.
'The committee made its decision' (singular) not 'their decision' in formal test contexts.
An introductory participial phrase must modify the grammatical subject of the main clause.
Wrong: 'Rushing to meet the deadline, the report was hastily written.' Right: 'Rushing to meet the deadline, the team hastily wrote the report.' (the team, not the report, was rushing).
Parallel structure: items in a list or after a correlative conjunction (both…and, either…or, not only…but also) must be in the same grammatical form.
'The program helps students to improve their grades, develop time management skills, and [building/build] confidence.' Parallel infinitives require 'build,' not 'building.'
Use the subjunctive mood (were, be, have been) for hypothetical, contrary-to-fact, or demanding constructions.
'If the temperature were to drop below freezing, the pipes would burst.' (subjunctive 'were,' not 'was,' because this is hypothetical.)
Form, Structure, and Sense Practice Questions
Select an answer and click Check Answer to reveal the full explanation. Questions go from easiest to hardest.
The following sentence contains a blank. Select the choice that best completes the sentence according to the conventions of Standard English. Every April, the team of researchers ______ its findings at the annual conference.
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Correct answer: B. presents
Explanation
'Every April' establishes a repeated action, so the simple present is appropriate. The subject is the singular collective noun 'team'; 'of researchers' does not change its number, and the singular pronoun 'its' confirms the agreement. The required form is therefore 'presents.' Choice A is plural, while Choices C and D use plural auxiliaries and tenses that do not fit the stated annual routine.
The following sentence contains a blank. Select the choice that best completes the sentence according to the conventions of Standard English. By the time the expedition reached base camp, the supplies ______ significantly depleted by three days of unexpected storms.
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Correct answer: A. had already been
Explanation
'By the time the expedition reached base camp' establishes a completed past reference point, and 'already' marks the depletion as earlier. The past perfect 'had already been depleted' expresses that sequence. Choice C is present tense. Choice B uses the singular auxiliary 'was' with the plural subject 'supplies.' Choice D is present perfect and does not fit the completed past reference point.
The following sentence contains a blank. Select the choice that best completes the sentence according to the conventions of Standard English. ______ through the museum's archives for months, the curator discovered a collection of photographs that had never been publicly exhibited.
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Correct answer: D. Having searched
Explanation
'Having searched through the museum's archives' is a perfect participial phrase that correctly modifies 'the curator' and places the search before the discovery. Choices B and A each create a comma splice by placing an independent clause before another independent clause with only a comma. Choice C produces an introductory noun phrase that cannot logically modify the curator's act of discovering the photographs.
The following sentence contains a blank. Select the choice that best completes the sentence according to the conventions of Standard English. The committee recommended that each applicant ______ a portfolio of original work along with the standard application materials.
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Correct answer: C. submit
Explanation
The verb 'recommended' triggers the subjunctive mood in the dependent clause introduced by 'that.' In English, verbs of recommendation, suggestion, demand, or requirement (recommend, suggest, insist, require, demand, propose) require the base form of the verb (the present subjunctive) in the 'that' clause, regardless of number or tense. The base form is 'submit'—no -s ending, no tense inflection. Choice C is correct. Choice A ('submits') is the indicative singular present, not the subjunctive. Choice B ('submitted') is past tense, incorrect for the required construction. Choice D ('will submit') is future tense, which does not follow the subjunctive pattern.
The following sentence contains a blank. Select the choice that best completes the sentence according to the conventions of Standard English. The novel's narrator, along with her two unreliable companions, ______ the reader through a series of increasingly ambiguous flashbacks.
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Correct answer: D. guides
Explanation
The subject of the sentence is 'narrator'—singular. The phrase 'along with her two unreliable companions' is a parenthetical phrase (not joined by 'and') that does not change the number of the subject. 'Along with,' like 'as well as' and 'in addition to,' introduces supplementary information but does not create a compound subject. The subject remains singular ('narrator'), requiring the singular verb 'guides.' Choice D is correct. Choice A ('guide') is plural. Choice C ('are guiding') uses the plural auxiliary 'are.' Choice B ('have guided') uses the plural auxiliary 'have' and present perfect tense.
The following sentence contains a blank. Select the choice that best completes the sentence according to the conventions of Standard English. Neither the lead architect nor the two junior engineers ______ aware of the structural flaw until the inspection report was filed.
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Correct answer: B. were
Explanation
With 'neither...nor' constructions, the verb agrees with the subject closest to it (the rule of proximity). The subjects joined are 'the lead architect' (singular) and 'the two junior engineers' (plural). The subject closest to the verb is 'the two junior engineers'—plural. Therefore, the verb must be plural: 'were.' Choice B is correct. Choice A ('was') would be correct if the singular subject 'the lead architect' were closest to the verb. Choice C ('has been') uses a singular auxiliary 'has' and present perfect tense, both incorrect here. Choice D ('is') is present tense and singular, doubly incorrect.
The following sentence contains a blank. Select the choice that best completes the sentence according to the conventions of Standard English. The company's success depended not only on ______ but also on building a culture that attracted and retained top engineers.
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Correct answer: A. developing innovative products
Explanation
The 'not only...but also' construction requires parallel grammatical form. The second element is the gerund phrase 'building a culture,' so the first must be the gerund phrase 'developing innovative products.' Choice B places an infinitive after the preposition 'on.' Choice C places a bare verb after 'on.' Choice D places a full finite clause after 'on.' Each is grammatically incompatible with the preposition and breaks the parallel structure.
The following sentence contains a blank. Select the choice that best completes the sentence according to the conventions of Standard English. If the atmospheric carbon dioxide concentration ______ at its pre-industrial level, many of the climate disruptions observed today would not have occurred.
Show explanation
Correct answer: C. had remained
Explanation
This is a past contrary-to-fact conditional: carbon dioxide did not remain at pre-industrial levels, and the climate disruptions did occur. In third conditional (past contrary-to-fact) constructions, the if-clause uses the past perfect ('had + past participle') and the main clause uses 'would have + past participle.' The sentence's main clause is 'would not have occurred'—the correct past perfect form for the if-clause is 'had remained.' Choice C is correct. Choice A ('remained') is simple past, which is used in second conditional (present contrary-to-fact) structures, not third conditional. Choice B ('remains') is present tense, inconsistent with the past context. Choice D ('has remained') is present perfect, also inconsistent with the past contrary-to-fact structure.
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Common Mistakes to Avoid
Use this checklist to catch common traps while working through Form, Structure, and Sense questions, then add your own patterns as you review missed answers.
- !Choosing a verb that agrees with the nearest noun rather than the actual grammatical subject (proximity agreement error).
- !Using a plural pronoun ('they,' 'their') for a singular antecedent because the antecedent feels general, without checking whether the test context allows informal singular 'they'—check each question carefully.
- !Misidentifying the subject of a dangling modifier by reading the sentence quickly rather than checking which noun immediately follows the introductory phrase.
- !Breaking parallel structure by shifting form within a list (mixing gerunds, infinitives, and noun phrases).
- !Using 'was' instead of 'were' in hypothetical or contrary-to-fact conditionals because 'was' sounds more natural in casual speech.
Strategy Tips: Form, Structure, and Sense
For any question involving a verb, identify the subject first by asking 'who or what is performing this action?' Cross out all intervening material before deciding on number agreement.
For pronoun questions, identify the antecedent (the noun the pronoun replaces) and check: same number? same person? unambiguous (only one possible antecedent)?
For parallel structure, read the list aloud substituting each answer choice in turn—the correct choice will sound rhythmically and grammatically consistent with the other items.
For modifier questions, find the introductory phrase, identify what it describes, and then check whether the grammatical subject of the main clause is that thing—if not, the modifier is dangling and you need to correct the subject.
Other Standard English Conventions Subtopics
Master Form, Structure, and Sense
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