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Reading & Writing · Checkpoint 6 of 30 · Standard English Conventions · ~14 min
Grammar: form, structure & sense
Subject–verb agreement, pronouns, verb tense, and modifiers — the rules the SAT actually tests.
The 30-second version
the SAT tests a short list of grammar rules, and it hides them the same ways every time: it stuffs distance between subject and verb, buries the real subject behind a prepositional phrase, and dangles modifiers next to the wrong noun. Learn the four rule families below and the hiding spots stop working.
Learn it: the four families
1. Subject–verb agreement
Singular subjects take singular verbs. The SAT makes this hard by inserting a prepositional phrase between them:
The collection of rare manuscripts was (not were) damaged.
The subject is collection, not manuscripts — the phrase "of rare manuscripts" is scenery. Cross out prepositional phrases (of…, in…, with…, along with…) and the true subject appears.
2. Pronouns
A pronoun must match its noun in number and point to it unambiguously. The committee published its findings (a committee is one thing). Watch the classics: its (possessive) vs. it's (it is); their/there/they're; whose/who's. Possessive-vs-contraction questions are conventions questions in disguise: expand the apostrophe ("it is") and see if the sentence survives.
3. Verb tense and form
The surrounding sentences set the timeline; the blank must fit it. If the passage narrates in past tense, a sudden will discover needs a reason. Also check that verbs in a list stay parallel: collecting, labeling, and storing — not to store.
4. Modifiers
An opening descriptive phrase must be followed immediately by the thing it describes.
❌ Hiking without a map, the trail confused the students. (The trail wasn't hiking.)
✓ Hiking without a map, the students lost the trail.
When a choice starts with a comma after a describing phrase, ask: who is doing this? That noun must come next.
Common traps
- The nearest noun is bait. Agreement is with the subject, not with whatever sits next to the verb.
- "Each," "every," "neither" are singular, even followed by plural phrases: Each of the players was ready.
- Fancier isn't safer. The most complicated verb form is usually a trap; the SAT prefers the simplest form that fits the timeline.
Try it
The batch of samples collected from the three field sites ____ ready for analysis.
Strip the prepositional phrases: "The batch … is ready." The subject is the singular batch; samples and sites are inside phrases that exist purely to mislead you toward a plural verb.
Free resources for this checkpoint
The Ultimate Guide to SAT Grammar (opens in a new tab)
Meltzer's grammar guide teaches the actual rules the SAT tests — sentence boundaries, punctuation, verb agreement, transitions — with drills for each rule, updated for the digital SAT's question style.
Paid Resource
Best for Grammar
Khan Academy Official Digital SAT Prep (opens in a new tab)
Free structured lessons, video instruction, and practice exercises for both SAT sections, built with College Board as the official practice partner. After a Bluebook practice test, you can link your results to get personalized practice recommendations.
Official Practice Partner
Completely Free
Practice next
Question Bank filter: Reading & Writing → Standard English Conventions → Form, Structure, and Sense. Do a set of 10–15, and log every miss in your error log with the rule family it broke.
Practice Form, Structure, and SenseOriginal Digital SAT-style questions on what this checkpoint covers.