共同 きょうどう決定 けってい ほうじゃありませんでした
kyōdōketteihōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 共同決定法

1. Was not a joint decision-making method.; Was not decided jointly.

Past/Perfective
Negative
Polite
Terminal Form