なぎょう変格 へんかく活用 かつようじゃないです
na gyōhenkakukatsuyōjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of ナ行変格活用

1. Is not [na-group irregular verb]; Is not [na-adjective]

Negative
Polite
Casual Register
Linguistics