こうきくさじゃありませんでした
小浮草じゃありませんでした
kōkikusajārimasendeshita

Noun
Desu Copula

The polite, past negative form of こうきくさ

1. Was not water lettuce.; Was not a small floating plant.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana