業務 ぎょうむ分掌 ぶんしょうじゃありませんでした
gyōmubunshōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 業務分掌

1. Was not in my job description.; Was not my responsibility.

Past/Perfective
Negative
Polite
Terminal Form