新制 しんせい中学 ちゅうがくじゃなかったです
shinseichūgakujanakattadesu

Noun
Desu Copula

The polite, past negative form of 新制中学

1. Wasn't a new system middle school.; Wasn't a new-system junior high.

Past/Perfective
Negative
Polite
Casual Register