I'm not a student at this school.
I'm a teacher.
You aren't stupid.
You're lazy.
Coimbra isn't in Spain.
It's in Portugal.
Helena isn't Jack's daughter.
She's his wife.
My wife and I aren't from England.
We're Scottish.
The children aren't at school.
They're on holiday.
https://339efcb25eb75e967b0d-ff8eeadd950d51fd1fc939dca75b3973.ssl.cf1.rackcdn.com/assets_green.swf