にしばんもろこしじゃなかったです
西蛮蜀黍じゃなかったです
ni shiban morokoshijanakattadesu

Noun
Desu Copula

The polite, past negative form of せいばんもろこし

1. Wasn't a western barbarian uncle.; Wasn't a rough/uncouth older man.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana