ツキチョウチョウウオではありませんでした
tsukichōchoōodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of ツキチョウチョウウオ

1. Was not a mandarin fish.; Was not a butterflyfish.

Past/Perfective
Negative
Polite
Formal Register