うむしゅむこっぱいじゃなかった
宇牟須牟骨牌じゃなかった
umu shumukoppaijanakatta

Noun
Da Copula

The past negative form of うんすんかるた

1. It wasn't Umu Sumu Bone Dominoes.

Past/Perfective
Negative
Usually Written in Kana