おうぶくろむささびじゃなかったです
大袋鼯鼠じゃなかったです
ōbuku romusasabijanakattadesu

Noun
Desu Copula

The polite, past negative form of おおふくろももんが

1. Was not a sugar glider.; Wasn't a sugar glider.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana