遊泳 ゆうえう動物 どうぶつではありませんでした
yūeudōbutsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 遊泳動物

1. Was not a swimming animal.; Was not an aquatic animal.

Past/Perfective
Negative
Polite
Formal Register