こうじカビじゃなかったです
麹カビじゃなかったです
kōjikabijanakattadesu

Noun
Desu Copula

The polite, past negative form of こうじかび

1. Wasn't Aspergillus oryzae.; Wasn't koji mold.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana