しろふくろうじゃなかったです
白梟じゃなかったです
shiro fukurōjanakattadesu

Noun
Desu Copula

The polite, past negative form of しろふくろう

1. Was not a white owl.; Wasn't a white owl.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana