かぎょう変格 へんかく活用 かつようじゃないです
kagyōhenkakukatsuyōjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of カ行変格活用

1. Is not [a ru-verb]; Is not [irregular ru-verb]

Negative
Polite
Casual Register
Linguistics