Reading & Writing

SAT Grammar Rules Chart

SAT grammar questions test how words and clauses fit together. Find the subject, verb, modifier or sentence boundary before comparing choices. The chart below pairs each rule with a sentence you can check.

Written by Luke Finigan

Updated Oct 2, 2026

Grammar rules with corrected examples

Standard English Conventions includes Form, Structure, and Sense and Boundaries. This chart covers the word-level decisions; use the separate punctuation chart for clause boundaries.

Rule	Correct example	Check
Subject–verb agreement	The collection of maps is complete.	The singular subject is collection, not maps.
Tense	In 1928, the team discovered the site.	The completed event fixes the past-tense timeline.
Modifier placement	Examining the map, Lina noticed a route.	Lina is the person examining the map.
Pronoun reference	The batteries lost their charge.	Their refers to the plural batteries.
Parallel structure	The design reduces weight and improves balance.	Reduces and improves have matching grammatical roles.

Find the subject through intervening words

In “The collection of maps ___ complete,” temporarily set aside “of maps.” You are left with “The collection ___ complete,” so choose “is.” Do not choose “are” because the nearest noun happens to be plural.

Try the same process with “The results of the experiment ___ clear.” The subject is “results,” so “are” fits. The removal check identifies the structure without changing the meaning.

Attach an opening modifier to its actor

“Examining the map, the route became clear” makes the route seem to examine the map. Name the actor immediately after the comma: “Examining the map, Lina noticed a route.” Then check that the rest of the sentence still expresses the intended action.

An answer can sound fluent while attaching the modifier to the wrong noun. Ask who actually performs the opening action.

Use the passage to choose tense and reference

Past dates, an earlier completed event and surrounding verb forms can establish tense. Do not force every verb into the same tense if the timeline changes. For pronouns, identify the antecedent and make sure the reference is clear.

Singular “they” is not automatically an agreement error. Judge the intended referent and sentence structure rather than eliminating a choice only because it contains “they.”

A practice routine tied to your misses

Start with the rule your recent practice shows you need. For five fresh questions, write the subject–verb pair, modifier actor or timeline cue before answering. Review the wrong decision before adding the next five.

Then mix agreement and punctuation questions. The test asks you to recognize which rule is active; an isolated drill alone does not test that recognition.

Form, Structure, and Sense · Easy

Every autumn, a cooperative in northern Maine ______ its members with seed packets selected for the region's short growing season.

AprovidingBto provideCto have providedDprovides

Choose an answer.

Open the question and explanation

Try it yourself

Choose the verb: The collection of maps ___ complete.

AisBare

Choose an answer.

Sources

College Board Reading and Writing domains

Next steps

Practice grammar rules Practice punctuation Open Reading and Writing bank Practice vocabulary Take timed modules

FAQs

What grammar does the SAT test?

Standard English Conventions includes sentence structure, usage and punctuation, including agreement, tense, modifiers and clause boundaries.

Is singular they always wrong on the SAT?

No. Determine the pronoun’s referent and whether the sentence is grammatically clear. The word itself is not an automatic error.

Should grammar practice always begin with punctuation?

Choose the first drill from your own errors. Punctuation is appropriate when sentence boundaries are your actual gap.

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