高麗 こうらい うぐいすじゃありませんでした
kōrai uguisujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 高麗鶯

1. Was not a Korean nightingale.; Was not a zither player. (Archaic/poetic)

Past/Perfective
Negative
Polite
Terminal Form