うみたなごじゃありませんでした
海鱮じゃありませんでした
umitanagojārimasendeshita

Noun
Desu Copula

The polite, past negative form of うみたなご

1. Was not a sand lance.; Was not a Japanese sand lance.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana