さわがにでわありませんでした
沢蟹ではありませんでした
sawaganidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of さわがに

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

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana