こびれごんどうじゃありませんでした
小鰭巨頭じゃありませんでした
kobire gon dōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of こびれごんどう

1. Was not a small fin, big head.; Was not a small-finned, big-headed person.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana