業務 ぎょうむ じょう過失 かしつじゃなかったです
gyōmujōkashitsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 業務上過失

1. Wasn't a professional/work-related mistake.; Wasn't a negligence at work.

Past/Perfective
Negative
Polite
Casual Register