くろあげはでわありませんでした
黒揚羽ではありませんでした
kuroagehadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of くろあげは

1. Was not black wings.; Was not a black-winged person.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana