Relative clauses give more information about a noun. They use words like who, which, that, where, when, and whose.
Defining: gives essential info (no commas). Non-defining: gives extra info (with commas). Example: The man who called you is my boss (defining). My boss, who is very kind, called you (non-defining).
Who = people. Which = things. That = people or things (defining only). Where = places. When = times. Whose = possession.
In defining clauses, you can omit the pronoun if it's the object. Example: The book (that) I read was great.
Non-defining clauses always use commas and never use 'that'. Example: My brother, who lives in Paris, is visiting.
Who = people. Which = things. That = people or things (defining only). Where = places. When = times. Whose = possession.In defining clauses, you can omit the pronoun if it's the object. Example: The book (that) I read was great.Defining: gives essential info (no commas). Non-defining: gives extra info (with commas). Example: The man who called you is my boss (defining). My boss, who is very kind, called you (non-defining).Non-defining clauses always use commas and never use 'that'. Example: My brother, who lives in Paris, is visiting.