高級 こうきゅう脂肪 しぼう さんじゃなかったです
kōkyūshibōsanjanakattadesu

Noun
Desu Copula

The polite, past negative form of 高級脂肪酸

1. Wasn't a high-grade fatty acid.; Wasn't a luxury fatty acid.

Past/Perfective
Negative
Polite
Casual Register