こんごうあなごじゃなかったです
金剛穴子じゃなかったです
kongōanagojanakattadesu

Noun
Desu Copula

The polite, past negative form of こんごうあなご

1. Wasn't Kongōana-ko.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana