主語 しゅご じょ動詞 どうし倒置 とうちじゃないです
shu gojodōshito uchijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 主語助動詞倒置

1. Isn't it?; It isn't.

Negative
Polite
Casual Register
Linguistics