匿名とくめい掲示けいじいたじゃなかったです
tokumeikeiji itajanakattadesu

Noun
Desu Copula

The polite, past negative form of 匿名掲示板

1. It wasn't an anonymous message board.; It wasn't an anonymous bulletin board.

Past/Perfective
Negative
Polite
Casual Register
Internet