あかめいもじゃなかったです
赤芽芋じゃなかったです
akameimojanakattadesu

Noun
Desu Copula

The polite, past negative form of あかめいも

1. Wasn't red potato.; Wasn't a red sweet potato.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana