草原 そうげん雷鳥 らいちょうではありませんでした
sōgenraichōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 草原雷鳥

1. Was not a prairie grouse.; Was not a black-billed ptarmigan.

Past/Perfective
Negative
Polite
Formal Register