殺菌 さっきん消毒 しょうどく ではありませんでした
sakkinshōdokukidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 殺菌消毒器

1. Was not a sterilizer.; Was not a disinfectant.

Past/Perfective
Negative
Polite
Formal Register