what is a relative clause Types of relative clauses

A relative clause is a type of subordinate clause that modifies a noun or pronoun in the main clause. It begins with a relative pronoun (such as who, whom, whose, which, or that) or a relative adverb (such as when, where, or why) and provides additional information about the noun or pronoun.

There are two types of relative clauses:

1. Restrictive Relative Clauses: These are also known as defining or essential relative clauses. They provide essential information about the noun or pronoun they modify, and without them, the meaning of the sentence would change. Restrictive relative clauses are not separated from the main clause by commas.

Example: The book that I borrowed from the library was very interesting.

2. Non-Restrictive Relative Clauses: These are also known as non-defining or non-essential relative clauses. They provide additional information about the noun or pronoun they modify, but they are not essential to the meaning of the sentence. Non-restrictive relative clauses are separated from the main clause by commas.

Example: My sister, who lives in London, is coming to visit me next week