やまねずみじゃなかったです
山ねずみじゃなかったです
yamanezumijanakattadesu

Noun
Desu Copula

The polite, past negative form of やまねずみ

1. Was not a mountain mouse.; Wasn't a mountain mouse.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana