Guide/06 SAT & ACT Prep
SAT Grammar & Punctuation Rules
The punctuation and grammar rules the SAT tests on every form, the tricks for spotting each one fast, and the traps that catch strong students.
Chapter 61 of 866 min readUpdated October 1, 2026 Preview
About a quarter of the Reading & Writing section is grammar, and it's the most learnable part of the whole test. The SAT tests a short, predictable list of rules, over and over.
Learn the rules below until you can "hear" them, and these become your fastest, most reliable points. The same rules power ACT English too...
Continue reading with full access
Get the complete college application guide, the example library, timelines, and resources.
One-time payment · Lifetime access · Secure checkout by Stripe
What’s in this chapter
- 1The one idea behind most punctuation questions
- 2Joining two complete sentences
- 3Extra information: commas, dashes, parentheses
- 4When not to use a comma
- 5Apostrophes and possessives
- 6Form, structure, and sense (grammar)
- 7Your grammar drill