ぎんとんぼじゃありませんでした
銀蜻蜓じゃありませんでした
gintombojārimasendeshita

Noun
Desu Copula

The polite, past negative form of ぎんやんま

1. It was not a silver dragonfly.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana