しろせきれいでわありませんでした
白鶺鴒ではありませんでした
shiro sekireidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of はくせきれい

1. Was not a white wagtail.; Was not a Japanese wagtail.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana