硬骨 こうこつ魚類 ぎょるいじゃありませんでした
kōkotsugyoruijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 硬骨魚類

1. Was not a bony fish.; Was not of the bony fish class.

Past/Perfective
Negative
Polite
Terminal Form