無効 むこうSP えすぴいDU でぃうゆうではありませんでした
mukō esu pii diuyūdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 無効SPDU

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

Past/Perfective
Negative
Polite
Formal Register
Computing