Grammar exercises · 12 questions
Comma before 'which' exercises
In short
Test yourself on comma before 'which' 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 before 'which' lesson — Put a comma before 'which' when it introduces a non-defining relative clause — extra information that could be removed without changing who or what you mean. Use 'that' with no comma for defining (essential) information instead. This one rule also decides whether 'who', 'and', 'but' and 'because' need a comma before them.
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