ちょうはんじゃなかったです
蝶斑じゃなかったです
chōhanjanakattadesu

Noun
Desu Copula

The polite, past negative form of ちょうはん

1. Wasn't a butterfly.; Wasn't a spot.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana