しゃちほこじゃなかったです
鯱じゃなかったです
shachihokojanakattadesu

Noun
Desu Copula

The polite, past negative form of しゃちほこ

1. Wasn't a killer whale.; Wasn't an orca.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana