むささびでわありませんでした
鼯鼠ではありませんでした
musasabidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of むささび

1. Was not a flying squirrel.; Was not a dormouse.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana