あか翻車魚 まんぼうではありませんでした
aka mambōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 赤翻車魚

1. Was not a red flipping carp.; Was not a red carp that flipped over.

Past/Perfective
Negative
Polite
Formal Register