What are the rules for using commas (or punctuation)?

Question

What are the rules for using commas (or punctuation)?

When do I use a comma with a conjunction?

When do I use commas to as parenthetical or as introductory?

Answer 1

✍️ The 3 Main Reasons to Use a Comma

1️⃣ Join Two Sentences with a Conjunction

Use a comma when you connect two complete sentences with a conjunction (and, but, or, so):

✅ I wanted to go for a walk, but it started raining.

2️⃣ Set Off Extra (Parenthetical) Information

Use commas around added details that aren’t essential to the sentence’s meaning. If you remove this “parenthetical” information, the sentence still makes sense:

✅ My brother, who lives in London, is visiting next week.

✅ Test it: “My brother is visiting next week.” ✅ Still makes sense.

3️⃣ Introduce a Sentence

Use a comma after introductory words or phrases:

✅ Before learning these three comma rules, I had difficulty using commas correctly.

1. ✅ However, I feel more confident now.