きちょうじゃありませんでした
黄蝶じゃありませんでした
kichōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of きちょう

1. It was not a yellow butterfly.; I was not a yellow butterfly.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana