馬鈴薯 じゃがいも澱粉 でんぷんじゃなかったです
jagaimodempunjanakattadesu

Noun
Desu Copula

The polite, past negative form of 馬鈴薯澱粉

1. Wasn't potato starch.

Past/Perfective
Negative
Polite
Casual Register