おうげたでじゃなかったです
大毛蓼じゃなかったです
ō getadejanakattadesu

Noun
Desu Copula

The polite, past negative form of おおけたで

1. It wasn't a big weed.; It wasn't a large mugwort.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana