ウンウンヘキシウムじゃありませんでした
un'un'e kishiumu ja arimasendeshita

Noun
Desu Copula

The polite, past negative form of ウンウンヘキシウム

1. Was not ununhexium. ; Was not a thing called ununhexium.

Past/Perfective
Negative
Polite
Terminal Form