夜間 やかん中学 ちゅうがくじゃなかったです
yakan chūgakujanakattadesu

Noun
Desu Copula

The polite, past negative form of 夜間中学

1. Wasn't night school.; Wasn't a night junior high/high school.

Past/Perfective
Negative
Polite
Casual Register