匿名 とくめい掲示 けいじ ばんではありませんでした
tokumeikeijibandewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 匿名掲示板

1. Was not an anonymous bulletin board.; Was not a nameless message board.

Past/Perfective
Negative
Polite
Formal Register
Internet