こうらいうぐいすじゃなかった
高麗鶯じゃなかった
kōrai uguisujanakatta

Noun
Da Copula

The past negative form of こうらいうぐいす

1. Wasn't a Korean nightingale.; Wasn't a hill grosbeak.

Past/Perfective
Negative
Usually Written in Kana