医療 いりょう少年 しょうねん いんじゃありませんでした
iryō shōnen inja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 医療少年院

1. Was not a medical juvenile detention center.; Was not a medical institution for youth.

Past/Perfective
Negative
Polite
Terminal Form