うぐいすかいじゃありません
鶯貝じゃありません
uguisukaijārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of うぐいすがい

1. It is not a warbler shell.; I am not a warbler shell.

Negative
Polite
Terminal Form
Usually Written in Kana