When a dependent clause begins a sentence, which comma usage is correct?

When a dependent clause begins a sentence, which comma usage is correct?

• A. A comma is used after the dependent clause.
• B. A comma is used before the dependent clause.
• C. No comma is used.
• D. A semicolon is used after.

Answer: (A)

Opening with a dependent clause creates an introductory setup for the sentence. A comma after that introductory clause signals the pause before the main idea, making the sentence clear and easy to read. For example: If it rains, we will stay indoors. Here, the dependent clause “If it rains” introduces the condition, and the comma after it shows where that setup ends and the main clause begins. This is the standard pattern. Placing a comma before the dependent clause would interrupt the flow and isn’t how introductory clauses are handled. Omitting the comma altogether can make the sentence harder to parse, especially with longer introductory phrases. A semicolon isn’t used to separate an introductory clause from the main clause, so it wouldn’t fit here.

Opening with a dependent clause creates an introductory setup for the sentence. A comma after that introductory clause signals the pause before the main idea, making the sentence clear and easy to read. For example: If it rains, we will stay indoors. Here, the dependent clause “If it rains” introduces the condition, and the comma after it shows where that setup ends and the main clause begins. This is the standard pattern.

Placing a comma before the dependent clause would interrupt the flow and isn’t how introductory clauses are handled. Omitting the comma altogether can make the sentence harder to parse, especially with longer introductory phrases. A semicolon isn’t used to separate an introductory clause from the main clause, so it wouldn’t fit here.