さわがにじゃありませんでした
沢蟹じゃありませんでした
sawaganijārimasendeshita

Noun
Desu Copula

The polite, past negative form of さわがに

1. Was not a Zawa crab.; Was not a Japanese freshwater crab.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana