うまおうとじゃなかったです
馬大頭じゃなかったです
uma ōtojanakattadesu

Noun
Desu Copula

The polite, past negative form of おにやんま

1. Wasn't being careless.; Wasn't absent-minded.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana