Grammar exercises · 12 questions
Comma rules exercises
In short
Test yourself on comma rules with 12 interactive questions. Every answer comes with an explanation, and if you get one wrong, the AI tutor can explain exactly why your answer didn't work.
Question 1 of 12
Choose the correctly punctuated sentence.
Shaky on the rule?
Guessing gets you through a quiz; understanding gets you through the exam. Read the full Comma rules lesson: A comma (,) marks a short pause that separates parts of a sentence: items in a list, two independent clauses joined by and/but/so, introductory words or phrases, and extra, non-essential information. Commas are never used alone to join two complete sentences; that error, a comma splice, is one of the most common accuracy mistakes in IELTS writing and speaking.