ヘキサクロロエタンじゃありませんでした
hekisakuroroetanjārimasendeshita

Noun
Desu Copula

The polite, past negative form of ヘキサクロロエタン

1. Was not hexachloroethane.; It wasn't hexachloroethane.

Past/Perfective
Negative
Polite
Terminal Form