前進 ぜんしん てき論証 ろんしょうじゃなかったです
zenshin teki ron shōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 前進的論証

1. Wasn't proactive reasoning.; Wasn't forward-thinking argument.

Past/Perfective
Negative
Polite
Casual Register