せきせいいんこじゃなかったです
背黄青鸚哥じゃなかったです
sekiseiinkojanakattadesu

Noun
Desu Copula

The polite, past negative form of せきせいいんこ

1. Wasn't a green parrot.; Wasn't a yellow-green parrot.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana