Common punctuation errors: How to punctuate clauses, quotes and lists
Fix common punctuation errors by matching each mark to its job: use commas to separate introductory elements and list items, semicolons to join closely related complete clauses, quotation marks to show exact words, and apostrophes for possession or contractions, not ordinary plurals. If a comma joins two sentences on its own, replace it with a period or semicolon, or add a coordinating conjunction. These are practical rules for understanding common punctuation errors and how to fix them. Punctuation can feel confusing because small marks change a sentence’s structure and meaning. A few clear checks can help you spot and correct frequent mistakes. This guide explains common punctuation errors and how to fix them, with examples of commas and lists, quotation-mark placement, semicolons, and apostrophes. Practise these checks to recognize and correct errors in your own writing.


