だい よん しゅ郵便 ゆうびん ものじゃなかったです
daiyon shu yūbimmonojanakattadesu

Noun
Desu Copula

The polite, past negative form of 第四種郵便物

1. Wasn't fourth-class mail.; Wasn't the fourth type of mail.

Past/Perfective
Negative
Polite
Casual Register