ひらしゅもくさめじゃありませんでした
平撞木鮫じゃありませんでした
hira shumoku sameja arimasendeshita

Noun
Desu Copula

The polite, past negative form of ひらしゅもくざめ

1. Was not a flat-headed shark.; Was not a bluntnose sixgill shark.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana