歯黒 はぐろ蜻蛉 かげろうじゃなかったです
ohagurokagerōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 御歯黒蜻蛉

1. Wasn't a black dragonfly.; Wasn't a fancy/refined dragonfly.

Past/Perfective
Negative
Polite
Casual Register