にせ ふくろ鼯鼠 むささびではありませんでした
nisefukuromusasabidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 偽袋鼯鼠

1. Was not a sugar glider.; Was not a false glider.

Past/Perfective
Negative
Polite
Formal Register