河原蓬 かわらよもぎじゃなかったです
kawarayomogijanakattadesu

Noun
Desu Copula

The polite, past negative form of 河原蓬

1. Wasn't a riverbed pampas grass.; Wasn't a field of pampas grass by the river.

Past/Perfective
Negative
Polite
Casual Register