Sharpen your punctuation instincts with commas and clause structure in real sentences. This quiz helps you decide when to separate ideas, when to join them, and when a comma would be a mistake. Expect...
Pick a difficulty and question count to begin.
Commas and clauses can change meaning fast, so this quiz focuses on decisions you’ll actually make while writing and editing. You’ll work with independent vs. dependent clauses, introductory elements, coordinating conjunctions, and common comma patterns.
Each question is multiple choice with 4 options and no timer, so you can slow down and reason it out. Choose your preferred question count and difficulty before you start—mixed mode blends easy wins with tougher, more nuanced items.
Many errors come from overusing commas “where you pause” instead of following clause logic, or from missing commas that prevent misreading. Watch especially for comma splices, misplaced commas around conjunctions, and unnecessary commas that split a subject from its verb.
The set is designed to ramp from straightforward comma rules to sentences where more than one rule could apply. Mixed difficulty keeps momentum while still testing judgment calls, and you can always adjust difficulty to focus on fundamentals or challenge yourself with trickier clause boundaries.
Which of the following sentences uses commas correctly?
Identify the sentence that contains a comma splice.
Where should you place the comma in this sentence? 'Before leaving the house he checked the weather.'
This quiz has 115 questions focused on commas and clause structure.
Every question is multiple choice with 4 options, and there is no timer.
Yes. Pick your preferred question count and difficulty before starting; mixed difficulty combines easier and harder items.
You’ll practice identifying independent/dependent clauses and placing commas correctly in common sentence patterns.
It frequently tests comma splices, missing commas after introductory clauses, and unnecessary commas around essential clauses.

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