ばえどくそうじゃありませんでした
蝿毒草じゃありませんでした
ba edokusōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of はえどくそう

1. Was not a poisonous herb.; Was not harmful like flies.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana