Grade 10 Grammar Lesson 31 Relative clauses: Non-defining

What are non defining clauses?
What is the difference in the structure between the defining and the non defining clauses?
Can we omit the relative pronouns in non defining relative clausse?

Grade 10 Grammar Lesson 31 Relative clauses Non-defining (1)

  •  A relative clause used to add extra information about a noun is called a non-defining relative clause. We use a comma between the noun and a non-defining clause, and another comma at the end of the clause if it is not the end of the sentence.
  • A defining clause is used to define or say which one is meant while a non-defining clause is used to give extra information where it’s not necessary to define the noun.
  •  We may sometimes omit the relative pronoun in a defining clause, but that’s not possible in a non-defining clause.
  •  That is sometimes used instead of who or which in defining clauses, but we normally avoid doing so in non-defining clauses.
  •  We may sometimes omit the relative pronoun in a defining clause, but When we want to add information about the whole or a part of a particular number of things or people, we can use a non-defining relative clause with of which or of whom after words such as all, both, each, many, most, neither, none, part, some; a number such as one, two, half, the first etc; and superlatives.

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