薄羽 うすば蜉蝣 ふゆうではありませんでした
usuba fuyūdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 薄羽蜉蝣

1. Was not a thin feather mayfly.; Was not a delicate, ephemeral being.

Past/Perfective
Negative
Polite
Formal Register