旧口 きゅうこう動物 どうぶつじゃなかったです
kyūkōdōbutsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 旧口動物

1. Wasn't an old-fashioned animal.; Wasn't a traditional creature.

Past/Perfective
Negative
Polite
Casual Register