げんこつでわありませんでした
拳骨ではありませんでした
genkotsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of げんこつ

1. Was not fist bone.; Was not a fist bone.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana