Are you Japanese?
Is your mother nice?
Are Anpanman and
Baikinman friends?
Is Chad from Canada?
Are Ms. Hayashi and Mr. Tsuji Married?
Yes, I am. -or- No, I am not.
Yes, she is. - or - No, she isn't.
Yes, they are. -or-
No, they are not.
Yes, he is. -or- No, he isn't.
Yes, they are. -or-
No, they aren't.