What are the rules for using commas in English grammar?.

Commas play a vital role in English grammar, helping to clarify meaning and improve readability. Here are the key rules:

Key Facts

• Separating items in a list: Use commas to separate three or more items (e.g., apples, oranges, and bananas).
• Before conjunctions: Place a comma before conjunctions in compound sentences (e.g., I wanted to go, but it was raining).
• After introductory phrases: Use a comma after introductory words or phrases (e.g., After dinner, we went for a walk).
• Setting off non-essential information: Commas can set off clauses or phrases that provide additional, non-essential information (e.g., My brother, who lives in New York, is visiting).
• Direct address: Use commas to separate names or titles when directly addressing someone (e.g., Let's eat, Grandma!).

Examples or Use Cases

• In a sentence: "For breakfast, I had eggs, toast, and coffee."
• In a compound sentence: "She loves reading, and he enjoys writing."

FAQs

• When should I not use a comma? Avoid using commas when they separate two subjects or two verbs in a simple sentence.
• Are there exceptions to these rules? Yes, style guides may have specific rules regarding comma usage.