I am a student.
I am not a student. I'm a teacher
We are singers.
We are not singers. We're dancers.
I am a cook.
I am not a cook. I'm a doctor.
I am a doctor.
I am not a doctor. I'm a cook.
They are birds.
They are not birds. They are pandas.
It is a cat.
It is not a cat. It is a dog.
It is a peach.
It is not a peach. It is an apple.
It is a pink bus.
It is not a pink bus. It is a yellow bus.
She is a king.
She is not a king. She is a queen.
is + not=?
isn't
I+ am=?
I'm
are+ not=?
aren't
She is not a teacher.=省略形
She isn't a teacher.
It is not a cat.=省略形
It isn't a cat.
They are not dancers.=省略形
They aren't dancers.
