みじんしでわありませんでした
微塵子ではありませんでした
mijinshidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of みじんこ

1. Was not a speck of dust.; Was not the least bit.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana