白馬 しろうま尖鼠 とがりねずみではありませんでした
shirōma togarinezumidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 白馬尖鼠

1. Was not a white horse shrew.; Was not a white-tipped shrew.

Past/Perfective
Negative
Polite
Formal Register