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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.