relative clauses theory

What clauses give essential information about a noun?

• defining relative clauses

• non-defining relative clauses

WHO - describes a person, WHICH - describes a thing, but in defining relative clauses we can use THAT instead of both who and which.

• True

• False

We sometimes use WHO and WHICH with prepositions at the end of the sentence.

• YES

• NO

Non-defining relative clauses five extra information, it is not necessary to make sense of the sentence.

• YES

• NO

There are 2 main differences between defining and non-defining relative clauses. 1) we cannot use THAT in a non-defining clause : Revolutionary technology, which is rare, usually costs a lot to develop. NOT Revolutionary technology that is are ...

What's the 2nd difference?

• we CAN omit the relative pronoun in a non-defining clause

• we can NEVER omit the relative pronoun in a non-defining clause

Be careful when you describe places with WHICH and WHERE, because which replaces a noun and pronoun and where replaces there and ...

• noun

• preposition of place + noun