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

Noun
Desu Copula
Negation Auxiliary

The polite negative form of サ行変格活用

1. Is not [a ru-verb]; Is not [a consonant-ending verb]

Negative
Polite
Casual Register
Linguistics