ほうぼうじゃなかったです
魴鮄じゃなかったです
hōbōjanakattadesu

Noun
Desu Copula

The polite, past negative form of ほうぼう

1. Was not a flounder.; Was not flatfish.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana