There are two types of relative clause: defining and non-defining.
Both add extra information to a sentence. Read the example sentences.
| Non-defining | Defining |
|---|---|
| The man, who has a moustache, is my grandfather. | I’m going to wear those shoes that I bought yesterday. |
| The video clip, which stars Monty Bishop, will be online tomorrow. | The woman who lives on the second floor is a doctor. |
| My Mum, whose sister lives in New York, is on holiday at the moment. | My aunt works for a school which is for special needs children. |
| The train, which was the first of its kind, is now in a museum. |