白馬 しろうま尖鼠 とがりねずみじゃありません
shirōma togarinezumijārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 白馬尖鼠

1. It is not a white horse sharp-nosed mouse.; It is not that.

Negative
Polite
Terminal Form