Easy Word | Luyện ngữ pháp


Luyện ngữ pháp - Destination C1 and C2 (Unit 17: Grammar - Clauses)


Relative pronouns in relative clauses

who to refer to people (and animals when we want to give them a personality) There are a lot of people who hate having injections.
which to refer to things and concepts (and animals when we don't want to give them a personality) This is the prescription which the doctor gave me.
whom a formal word for who; as an object; must be used directly after a preposition That's the consultant with whom I spoke.
that a more informal word for who, which, when, where, why; only used in defining relative clauses This is the prescription that the doctor gave me.
when to refer to time; = in/on/etc which I'll never forget the day when I broke my finger.
where to refer to place or situation; = in/at/etc which Harley Street, where she was born, is famous for its clinics.
why often after the word reason; = the reason for which; only used in defining relative clauses And that's (the reason) why I wanted to become a vet.
whose the possessive of who and which; can also come after a preposition There are several kids in my class whose parents are doctors.
what = the thing(s) which; only used in defining relative clauses What I don't understand is why she didn't take her pills.

Watch out!

• When we use a preposition with a relative pronoun, it is more formal to put the preposition before the pronoun.
✓ This is the medical encyclopaedia to which I referred. (very formal)
✓ This is the medical encyclopaedia which I referred to. (less formal)

Which can refer to the whole preceding clause, rather than just the preceding noun.
✓ She announced that she wanted to be a pathologist, which really shocked us. ( = the announcement shocked us)



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