ポリフッ ふっかビニリデンではありませんでした
porifukkabiniridendewārimasendeshita

Noun
Desu Copula

The polite, past negative form of ポリフッ化ビニリデン

1. Was not polyvinylidene fluoride.; Was not PVDF.

Past/Perfective
Negative
Polite
Formal Register