真相 しんそう究明 きゅうめい委員 いいん かいじゃなかったです
shinsōkyūmeiiinkaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 真相究明委員会

1. It wasn't the truth-investigation committee.; It wasn't the committee investigating the truth.

Past/Perfective
Negative
Polite
Casual Register