作物 さくもつ栽培 さいばい がくじゃなかったです
sakumotsusaibaigakujanakattadesu

Noun
Desu Copula

The polite, past negative form of 作物栽培学

1. Wasn't crop cultivation studies.; Wasn't studying crop cultivation.

Past/Perfective
Negative
Polite
Casual Register