せいようはこやなぎでわありませんでした
西洋箱柳ではありませんでした
seiyōhakoyanagidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of せいようはこやなぎ

1. Was not a Western box willow.; Was not a willow from the West.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana