ちどりじゃありませんでした
千鳥じゃありませんでした
chidorijārimasendeshita

Noun
Desu Copula

The polite, past negative form of ちどり

1. It was not a plover.; It wasn't a checkered pattern.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana