一貫 いっかん作業 さぎょうではありませんでした
ikkansagyōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 一貫作業

1. It was not standardized.; It was not routine.; It was not a regular operation.

Past/Perfective
Negative
Polite
Formal Register