Robert isn’t a teacher. He’s an engineer.
Mr. Blake isn’t a student. He’s a teacher.
This isn’t my umbrella. It’s your umbrella.
Sophie isn’t a teacher. She’s a keyboard operator.
Steven isn’t cold. He’s hot.
Naoko isn’t Chinese. She’s Japanese.
This isn’t a German car. It’s a Swidish car.
look at
Look at the man. He’s very fat.
Look at that woman. She’s very thin.