しびれなまずでわありませんでした
痺鯰ではありませんでした
shibire namazudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of しびれなまず

1. Was not a catfish.; Was not a numb catfish.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana