へそのゴマじゃありませんでした
臍のゴマじゃありませんでした
hesono gomajārimasendeshita

Noun
Desu Copula

The polite, past negative form of へそのゴマ

1. Wasn't my intention.; Wasn't being arrogant.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana