He made believe that he was a millionaire.

He was born poor, but died a millionaire.

He lives as if he were a millionaire.

Nobody envied the old man, who was a millionaire.

I wish my uncles were millionaires.

I wish I were a millionaire.

Mrs. Thompson wants to conceal the fact that she is a millionaire.

The man's statement to the pretty girl that he was a millionaire was all eye-wash.

Tom is a billionaire, not a millionaire.

Actually, Tom is a billionaire, not a millionaire.