緑藻りょくそう植物しょくぶつじゃなかったです
ryokusōshokubutsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 緑藻植物

1. Wasn't green algae.; Wasn't a green algae plant.

Past/Perfective
Negative
Polite
Casual Register