電磁 でんじ妨害 ぼうがいじゃなかったです
denjibōgaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 電磁妨害

1. Wasn't electromagnetic interference.; Wasn't a disturbance.

Past/Perfective
Negative
Polite
Casual Register
Computing