きはだまぐろじゃなかったです
黄肌鮪じゃなかったです
kihadamagurojanakattadesu

Noun
Desu Copula

The polite, past negative form of きはだまぐろ

1. Wasn't a yellowfin tuna.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana