The Colon: Introductions, Explanations, and Punctuation Choices
Core Concepts
Master the colon's role in introducing lists, quotes, and explanations. This stack also challenges you to choose the correct punctuation (comma, semicolon, or colon) to connect clauses, a critical skill for test day.
The Colon: Introductions, Explanations, and Punctuation Choices
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What is the single most important rule to remember before using a colon (:)?
The clause that comes before the colon must be a complete, independent clause that can stand on its own as a sentence.
What is the primary function of a colon?
A colon is used to introduce or call attention to what follows. It signals that a list, an explanation, an example, or a quotation will come next.
Identify and fix the error: "My favorite subjects are: history, math, and science."
The colon is incorrect because "My favorite subjects are" is not an independent clause. Remove the colon: "My favorite subjects are history, math, and science."
Rewrite the previous sentence so that a colon is used correctly.
"I have three favorite subjects: history, math, and science." Now, the part before the colon is a complete independent clause.
When can a colon be used to connect two independent clauses?
When the second independent clause directly explains, illustrates, or elaborates on the first one. The first clause creates an expectation that the second clause fulfills.
Why is a colon the best choice here? "The verdict was clear: the defendant was guilty on all counts."
The second clause ("the defendant was guilty on all counts") directly explains and clarifies what the "clear verdict" was. The first clause sets up an expectation.
When using a colon to introduce a quotation, what must precede the colon?
An independent clause. For example: "The coach had one final message for the team: 'Leave it all on the field.'"
Comma, Semicolon, or Colon?
"She bought everything on the list ___ milk, eggs, and bread."
Colon. The independent clause "She bought everything on the list" is followed by the list it introduces.
Comma, Semicolon, or Colon?
"The weather was perfect ___ the sun was shining and a cool breeze was blowing."
Semicolon or Colon. A semicolon works because the clauses are related. A colon also works because the second clause explains *why* the weather was perfect.
Comma, Semicolon, or Colon?
"The candidate won the election ___ but his opponent refused to concede."
Comma. A comma is used with the FANBOYS conjunction "but" to connect two independent clauses.
Never use a colon directly after what common parts of speech?
Do not place a colon directly after a verb (like 'includes' or 'are') or a preposition (like 'for' or 'of') when it makes the introductory clause incomplete.
