飲酒 いんしゅ検知 けんち ではありませんでした
inshukenchikidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 飲酒検知器

1. Was not a breathalyzer.; Was not an alcohol detector.

Past/Perfective
Negative
Polite
Formal Register