Comma Rules
What Is It?
Comma Rules refers to common uses of commas to separate, introduce, and clarify information.
B1-B2 reference topic in Punctuation.
Why Use It?
- Mark introductory elements.
- Separate clauses and list items.
- Prevent misreading.
Formation and Patterns
| Use | Pattern | Example |
|---|---|---|
| Introductory clause | DC, IC | When class ended, I revised. |
| Coordinator | IC, and/but/so + IC | I tried, but I needed help. |
| Nonessential info | noun, extra info, rest | My tutor, who is patient, explained it. |
Common Mistakes
- Using commas between subject and verb.
- Joining full sentences with only a comma.
- Putting commas around essential relative clauses.
Exceptions & Nuances
- Comma style varies in lists, especially the Oxford comma; consistency matters.