Category: Grammar Expansion

Relative Clauses

Relative Clauses

Relative clauses are clauses that give more information about a noun. They are introduced by relative pronouns (who, which, that, whose, whom, where, when).

The man who lives next door is a doctor. ("who lives next door" = relative clause)

Relative Pronouns

PronounUsed ForExample
whopeople (subject)The girl who is singing is my sister.
whompeople (object, formal)The man whom I met is a doctor.
whichthings/animalsThe book which I read was good.
thatpeople/thingsThe car that I bought is red.
whosepossessionThe boy whose bag was stolen is crying.
whereplacesThe house where I live is old.
whentimeThe day when we met was special.

Types of Relative Clauses

1. Defining Relative Clauses

Give essential information to identify the noun. No commas used.

  • The woman who answered the phone was rude. (Which woman? The one who answered)
  • The book that you gave me was interesting.
  • Students who work hard succeed.

2. Non-Defining Relative Clauses

Give extra, non-essential information. Commas required. Cannot use "that".

  • My mother, who is 60, still works. (We know who - extra info)
  • New York, which is in the USA, is a big city.
  • My brother, who lives in London, is visiting us.

When Can We Omit Relative Pronouns?

We can omit who/which/that when it's the object of the clause (in defining clauses).

  • The book (which/that) I read was good. ✓ (can omit - "I" is subject)
  • The man who called is my friend. ✗ (cannot omit - "who" is subject)

More Examples

  • The teacher who teaches us is kind.
  • The movie which we watched was boring.
  • That's the restaurant where we had dinner.
  • Do you remember the day when we first met?
  • The girl whose father is a doctor is my friend.
  • Everything that she said was true.