勤労 きんろう青少年 せいしょうねんじゃなかったです
kinrōseishōnenjanakattadesu

Noun
Desu Copula

The polite, past negative form of 勤労青少年

1. Was not a working youth.; Was not a diligent young person.

Past/Perfective
Negative
Polite
Casual Register