My grandfather was a pilot. He is sixty years old now.
My grandfather, who is sixty years old now, was a pilot.
Harry Potter was written by J.K Rowling. Her first name is Joanne.
Harry Potter was written by J.K.Rowling, whose first name is Joanne.
This is the Paul. We used to play with him as kids every day.
This is Paul, who we used to play with as kids every day.
The book is on the table. It belongs to Tim.
The book which belongs to Tim is on the table.
Liverpool is an big city. Liverpool is in England.
Liverpool, which is in England, is a big city.
This CD is scratched. I only bought it yesterday.
This CD, which I only bought yesterday, is scratched.
My sister loves wearing hats. Her hair is dark.
My sister, whose hair is dark, loves wearing hats.
They built a wall. It fell down after a few weeks.
The wall which they built fell down after a few weeks.
Our neighbours have never invited us to dinner. Their house is next to ours.
Our neighbours, whose house is next to ours, have never invited us to dinner.
They are the people. Their dog went missing last week.
They are the people whose dog went missing last week.
I want to buy the handbag. It has grey buttons.
I want to buy the handbag which has grey buttons.
Have you watched that film ? I recommended it to you last month.
Have you watched that film which I recommended to you last month?
I met Susan last month. She came to our house.
I met Susan,who came to our house, last month.
I have never met that woman. My cousin is talking to her.
I have never met the woman who my cousin is talking to.
My friend Michael often comes to play with me. He hasn't got any brothers or sisters.
My friend Michael, who hasn't got any brothers or sisters, often comes to play with me.
Titanic is one of my favourite movies. It is the story of a sinking ship.
Titanic, which is the story of a sinking ship, is one of my favourite movies.