無効 むこうPP ぴいぴいDU でぃうゆうではありませんでした
mukō piipii diuyūdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 無効PPDU

1. Was not an invalid PPDU.; Was not a non-valid PPDU.

Past/Perfective
Negative
Polite
Formal Register
Computing