みぶなじゃありませんでした
壬生菜じゃありませんでした
mibunaja arimasendeshita

Noun
Desu Copula

The polite, past negative form of みぶな

1. Was not nishinana.; Was not Japanese bunching onion.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana