裏口 うらぐち入学 にゅうがくじゃなかったです
uraguchinyūgakujanakattadesu

Noun
Desu Copula

The polite, past negative form of 裏口入学

1. Wasn't admitted through the back door.; Wasn't entered through special arrangements.

Past/Perfective
Negative
Polite
Casual Register