返信 へんしん りょう封筒 ふうとうじゃありませんでした
henshinryōfū tōja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 返信料封筒

1. It wasn't a reply envelope.; It wasn't the reply envelope.

Past/Perfective
Negative
Polite
Terminal Form