むささびじゃなかったです
鼯鼠じゃなかったです
musasabijanakattadesu

Noun
Desu Copula

The polite, past negative form of むささび

1. Was not a flying squirrel.; Wasn't a flying squirrel.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana