Срасстановкой глаголов to be. he is from america? no? he . he from jabana. they are from america? no,they . canadian.

He is from america? no? he isn't .he is from jabana. they are from america? no,they aren't.they are canadian.

He is from america? no,he isn't(is not). he is from jabana. they are from america? no,they aren't(are not). they are canadian.