羽黒 はぐろ蜻蛉 かげろうじゃなかったです
haguro kagerōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 羽黒蜻蛉

1. Wasn't a dragonfly.; Wasn't a Hakurotonbo.

Past/Perfective
Negative
Polite
Casual Register