民間 みんかん調査 ちょうさ機関 きかんじゃなかったです
minkanchōsakikanjanakattadesu

Noun
Desu Copula

The polite, past negative form of 民間調査機関

1. Was not a private investigation agency.; Wasn't a civilian research organization.

Past/Perfective
Negative
Polite
Casual Register