共同 きょうどう創業 そうぎょう しゃじゃなかったです
kyō dō sō gyōshajanakattadesu

Noun
Desu Copula

The polite, past negative form of 共同創業者

1. Wasn't a co-founder.; Wasn't a joint founder.

Past/Perfective
Negative
Polite
Casual Register