酸素 さんそ けい漂白 ひょうはく ざいじゃなかったです
sansokeihyōhaku zaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 酸素系漂白剤

1. Wasn't oxygen-based bleach.; Wasn't an oxygen-based bleaching agent.

Past/Perfective
Negative
Polite
Casual Register