Past Participle form
I want to go to Italy.
He wants to study history.
A: What do you want to have for dinner?
B: I don't want anything.
A: Do you want anything to drink?
B: Oh, yes. Can I have a glass of water please?
I wanted a new Xbox game.
They wanted to see a film.
A: Did you want to do something special day?
B: No, thanks. I wanted to go to restaurant but it's shut.
A: Oh well. Maybe next time.
I've wanted to go there for so long.
We've wanted to watch him play football for years.
A: How long have you wanted to go to China?
B: Quite a long time. I've wanted to go ever since I saw pictures.
A: When will you go?
B: Later this year.