きばうみになじゃありませんでした
牙海蜷じゃありませんでした
kibaumininajārimasendeshita

Noun
Desu Copula

The polite, past negative form of きばうみにな

1. Was not a fang sea.; Was not coiled.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana