うすばかげろうだったら
薄羽蜉蝣だったら
usubakagerōdattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of うすばかげろう

1. If/when thin feathers and mayflies…; If it were thin feathers and mayflies…

Tara Conditional
Usually Written in Kana