NON-DEFINING RELATIVE CLAUSES
USE
To add non-essential information to a phrase
WHO / WHOM
People
- Sean, who flew to New York yesterday, lives next door to me. → subject
- Mr Brown, whom I met at the fair trade last week, is a famous inventor. → object
- My friends, whom I haven't seen in years, are coming over. → object
WHICH
Things
- My new car, which is very expensive, is in the garage. → subject
- Middle England, which I bought yesterday, is by Jonathan Coe. → object
- The laptop, which I use for work, is quite reliable. → object
WHOSE
Possession
- James, whose father is a brilliant teacher, wants to study Maths.
- The woman, whose dog caused the commotion, apologized.
WHERE
Places
- The bar over there, where I generally have breakfast, was opened more than 100 years ago.
- The park, where I used to play as a child, is now a shopping mall.
Non-defining relative clauses:
- must always be between two commas.
- never use that. - Example: My sister, who lives in London, is coming to visit.
- cannot omit the object relative pronoun. - Example: The movie, which I watched yesterday, was fantastic.
- can use which to refer to the entire preceding clause. - Example: She spoke for hours about her trip, which fascinated everyone.
- are used more often in written English than in spoken English.