こっぱみじんでわありませんでした
木端微塵ではありませんでした
koppamijindewārimasendeshita

Noun
Desu Copula

The polite, past negative form of こっぱみじん

1. Was not even a splinter.; Was not the slightest bit.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana