ポリ塩化 えんかビフェニルじゃなかったです
porienkabifenirujanakattadesu

Noun
Desu Copula

The polite, past negative form of ポリ塩化ビフェニル

1. Was not polychlorinated biphenyl.; Wasn't PCB.

Past/Perfective
Negative
Polite
Casual Register