共同 きょうどう決定 けってい ほうじゃなかったです
kyōdōketteihōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 共同決定法

1. Wasn't a joint decision-making method.; Wasn't decided jointly.

Past/Perfective
Negative
Polite
Casual Register