まど表示 ひょうじ いき変換 へんかんではありませんでした
ma dohyōji iki henka ndewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 窓表示域変換

1. Was not the window display area conversion.; It was not a window display area conversion.

Past/Perfective
Negative
Polite
Formal Register
Computing