xDSL えっくすでぃうえすえるじゃありませんでした
ekkusudiue sueruja arimasendeshita

Noun
Desu Copula

The polite, past negative form of xDSL

1. Was not/didn't ; ; Wasn't/didn't used to be

Past/Perfective
Negative
Polite
Terminal Form
Telecommunications