茶翅 ちゃばねゴキブリじゃなかったです
chabanegokiburijanakattadesu

Noun
Desu Copula

The polite, past negative form of 茶翅ゴキブリ

1. Wasn't a cockroach wing.; Wasn't a tea wing.

Past/Perfective
Negative
Polite
Casual Register