あおばずくじゃありませんでした
青葉木菟じゃありませんでした
aobazukujārimasendeshita

Noun
Desu Copula

The polite, past negative form of あおばずく

1. Was not a Ural owl.; Was not a young/inexperienced owl.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana