補習 ほしゅう授業 じゅぎょう こうではありませんでした
hoshūjugyō kōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 補習授業校

1. Was not a supplementary school.; Was not a cram school.

Past/Perfective
Negative
Polite
Formal Register