むかしとんぼでわありません
昔蜻蛉ではありません
mukashitombodewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of むかしとんぼ

1. It is not a dragonfly.; It is not an old dragonfly.

Negative
Polite
Formal Register
Usually Written in Kana