腔腸 こうちょう動物 どうぶつじゃなかったです
kōchōdōbutsujanakattadesu

Noun
Desu Copula
no-Adjective

The polite, past negative form of 腔腸動物

1. Wasn't a coelomate.; Wasn't an animal with a coelom.

Past/Perfective
Negative
Polite
Casual Register