Relative clauses

DEFINING Relative clauses

· They start with relative pronouns and provide essential information about a noun. We use defining relative clauses to make clear which person or thing we are talking about. 

.We do not use commas.

· We can use that.

NON-DEFINING Relative clauses

· They start with relative pronouns and provide non-essential information . They give us ADDITIONAL,  information about someone or something. 

. We usecommas (,) to separate this clause from the rest of the sentence.

· We can't use that.