らっぱうにじゃありませんでした
喇叭雲丹じゃありませんでした
rappaunijārimasendeshita

Noun
Desu Copula

The polite, past negative form of らっぱうに

1. Was not a trumpet seahorse.; Was not a trumpet jellyfish.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana