単一 たんいつ文化 ぶんか主義 しゅぎじゃなかったです
tan'itsu bunkashugijanakattadesu

Noun
Desu Copula

The polite, past negative form of 単一文化主義

1. Wasn't monoculturalism.; Wasn't a single culture.

Past/Perfective
Negative
Polite
Casual Register