Relative clauses give extra information about a
noun in the main clause. Begin with a relative
pronoun (who, which, that, whom, whose)
The relative pronoun
can refer to the subject
of the clause.
Example: That's the woman
who bought my car.
Or the relative
pronoun can refer
to the object of the
clause.
Example: This is the cart
that I used to own.
Defining or non-defining
Defining clauses give
important information
which tells us exactly
what is being referred to
Example: The book with you
lent me is really good
Omitting the relative pronoun: In a
defining relative clause we can
leave out the relative pronoun if it
is the object of the clause. Example:
That's the car that I used to own.
WICH, WHO
& THAT:
That
instead of
which
That instead of which: When we talk
about things, that is often used instead of
which in defining clauses.
WHOM & WHOSE: Whom is the object form of
who. Its use is generally written or formal.
Whom has to be used after prepositions.
WHOSE means of whom, and usually refers to
people.