Tag Archives: which versus that

That vs. Which: When to Add Commas

Comma use seems to confuse almost everyone at some point.

Equally confusing for many is when to use that and when to use which when introducing extra information in a sentence. They aren’t interchangeable: which requires a set of commas, and that does not.

This post tackles both questions. Answers are based on whether the additional information is essential or nonessential to the meaning of your sentence. Continue

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