上層 じょうそう階級 かいきゅうじゃありませんでした
jōsōkaikyūjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 上層階級

1. Was not of the upper class.; Was not upper class.; Was not from a privileged background.

Past/Perfective
Negative
Polite
Terminal Form