鞭毛 べんもう藻類 そうるいではありませんでした
bemmōsōruidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 鞭毛藻類

1. Was not a flagellate.; Were not flagellates.

Past/Perfective
Negative
Polite
Formal Register