まみじろくいなじゃなかったです
眉白水鶏じゃなかったです
mamijirokuinajanakattadesu

Noun
Desu Copula

The polite, past negative form of まみじろくいな

1. Wasn't a white water rail.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana