腕白 わんぱく相撲 すもうではありませんでした
wampaku sumōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 腕白相撲

1. Was not arm-wrestling.; Was not being mischievous/naughty.

Past/Perfective
Negative
Polite
Formal Register
Sumo