だい さん しゅ郵便 ゆうびん ものじゃなかったです
daisanshuyūbimmonojanakattadesu

Noun
Desu Copula

The polite, past negative form of 第三種郵便物

1. Wasn't third-class mail.; Wasn't a type of third-class mail.

Past/Perfective
Negative
Polite
Casual Register