Semicolons and Colons — SAT Reading & Writing Explained
Semicolons connect two closely related independent clauses without a conjunction. Colons introduce a list, explanation, or elaboration when the first clause is complete.
The Core Idea
Semicolons and colons are precision tools. A semicolon is essentially a 'soft period' — what comes before and after must both be independent clauses. A colon is a promise — 'what follows will deliver on what I just said.'
Semicolon Rules
I wanted to sleep; I had too much work.
I was tired; however, I kept studying.
The attendees were from Paris, France; London, England; and Rome, Italy.
Colon Rules
I need three things: time, patience, and focus.
She had one goal: to graduate early.
What comes before the colon must be an independent clause.
Common Errors to Avoid
Using a semicolon when only one side is an independent clause
Using a colon after a fragment (the clause before a colon must be complete)
Confusing semicolons with commas in complex lists
How This Connects to Other Topics
Works alongside Comma Usage and Sentence Boundaries
Practice: Semicolons and Colons
5 SAT-style questions. Select your answer and get an instant explanation.
Bring the following items: a notebook, a pen, and your ID.
Which choice uses the colon correctly?
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