みじんこじゃありませんでした
微塵子じゃありませんでした
mijinkojārimasendeshita

Noun
Desu Copula

The polite, past negative form of みじんこ

1. Was not a speck of dust.; Was not worth a speck of dust.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana