公開 こうかい文種 ぶんしゅ べつじゃありませんでした
kō kaibunshubetsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 公開文種別

1. It was not a public document type.; It wasn't a publicly disclosed document type.

Past/Perfective
Negative
Polite
Terminal Form
Computing