うすばかげろうじゃありません
薄羽蜉蝣じゃありません
usubakagerōjārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of うすばかげろう

1. It is not a mayfly.; It is not flimsy.

Negative
Polite
Terminal Form
Usually Written in Kana