腔腸 こうちょう動物 どうぶつじゃありませんでした
kōchōdōbutsujārimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of 腔腸動物

1. Was not an invertebrate.; Was not a visceral animal.

Past/Perfective
Negative
Polite
Terminal Form