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Exercise 2: Classifying relative clauses

Purpose: This exercise helps you to understand the difference between essential and non-essential relative clauses and their effect on the use of the comma. Remember, a comma is needed to separate non-essential relative clauses from the rest of the sentence but not used with essential relative clauses.

Instructions: Read the sentences in the next exercise and decide whether each sentence includes one of the following:

  • essential relative clauses (needed to define the meaning of the word before)
  • non-essential relative clauses (providing extra information which could be omitted)
  • no relative clauses
Don't ignore the feedback. It explains the reasons why certain answers are incorrect, so make sure you read the feedback before moving on to the next question!

Estimated time: 20 minutes.

Press the button below to begin the exercise.