電波 でんぱ占有 せんゆう りつじゃなかったです
dempasen'yūritsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 電波占有率

1. Wasn't radio wave occupancy.; Wasn't radio frequency utilization.

Past/Perfective
Negative
Polite
Casual Register