へらぶなでわありませんでした
箆鮒ではありませんでした
herabunadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of へらぶな

1. Was not a carp.; Was not a crucian carp.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana