Key Takeaways

KEY TAKEAWAYS

• Punctuation marks provide visual cues to readers to tell them how to read a sentence. Punctuation marks convey meaning.
• Commas indicate a pause or a list in a sentence.
• A comma should be used after an introductory word to separate this word from the main sentence.
• A comma comes after each noun in a list. The word and is added before the last noun, which is not followed by a comma.
• A comma comes after every coordinating adjective except for the last adjective.
• Commas can be used to separate the two independent clauses in compound sentences as long as a conjunction follows the comma.
• Commas are used to separate interrupting words from the rest of the sentence.
• When you write the date, you add a comma between the day and the year. You also add a comma after the year if the sentence continues after the date.
• When they are used in a sentence, addresses have commas after the street address, and the city. If a sentence continues after the address, a comma comes after the zip code.
• When you write a letter, you use commas in your greeting at the beginning and in your closing at the end of your letter.