有効 ゆうこうPP ぴいぴいDU でぃうゆうではありません
yūkō piipii diuyūdewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 有効PPDU

1. Not a valid PPDU.; Is not a valid PPDU.

Negative
Polite
Formal Register
Computing