学級 がっきゅう崩壊 ほうかいじゃありませんでした
gakkyūhōkaijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 学級崩壊

1. Was not a classroom collapse.; Was not a class disruption.

Past/Perfective
Negative
Polite
Terminal Form