Explanation
What are the Core Ideas of the Comma? Commas are used to: Separate ideas, Clarify sentence structure, Show non-essential information, Organize lists, and Improve readability. 1. Using Commas Before FANBOYS When a FANBOYS conjunction (For, And, Nor, But, Or, Yet, So) joins two independent clauses (two complete sentences), a comma MUST come before the conjunction. Correct: The student reviewed advanced vocabulary words, but she forgot to practice timing strategies. Rule: No Comma When the Second Part Is NOT a Complete Sentence. If the subject is not repeated in the second part, no comma should be used. Correct: Students should analyze the author's tone and identify supporting evidence carefully. 2. Using Commas with Dependent Clauses and Phrases Introductory: When a dependent phrase or clause comes before the main sentence, place a comma after it. (e.g., Because many students rush, they miss clues. ) End of Sentence: When a dependent clause comes after the main clause, a comma is needed if it adds nonessential info (especially clauses starting with which ). Digital SAT Tip: Use a comma after introductory clauses/phrases, and before nonessential "which" clauses. 3. Commas Around Non-Essential Information If you can remove the information and the sentence still makes sense, the information is non-essential. Use two commas : one before it and one after it. Correct: The school's new library, which opened last year, has become a popular place. Non-essential clauses often begin…