Learn with Mentor · 9 min
Commas in Complex Sentences
Use commas after introductory elements, between coordinate adjectives, before conjunctions joining independent clauses, and around address, interjections and interrupters.
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Commas show sentence structure
A comma is useful when it marks a real boundary in the sentence: an introductory element ending, equal adjectives separating, two complete clauses joining, or extra information interrupting. The goal is clarity, not adding pauses wherever you might breathe.