オンザフライ みではありませんでした
onzafuraikakikomidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of オンザフライ書き込み

1. Was not written on the fly.; Was not written spontaneously.; Was not an impromptu writing.

Past/Perfective
Negative
Polite
Formal Register
Computing