経済 けいざい研究 けんきゅう しょじゃなかったです
keizaikenkyūshojanakattadesu

Noun
Desu Copula

The polite, past negative form of 経済研究所

1. Wasn't an economic research institute.; Was not an economic research institute.

Past/Perfective
Negative
Polite
Casual Register