腔腸 こうちょう動物 どうぶつではありませんでした
kōchōdōbutsudewārimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of 腔腸動物

1. Was not a coelomate.; Was not an animal with a coelom.

Past/Perfective
Negative
Polite
Formal Register