無産 むさん階級 かいきゅうではありませんでした
musankaikyūdewārimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of 無産階級

1. Was not of the proletariat.; Was not of the working class.

Past/Perfective
Negative
Polite
Formal Register