高速 こうそく伝送 でんそうじゃありませんでした
kōsokudensōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 高速伝送

1. Was not high-speed transmission.; It was not transmitted at high speed.

Past/Perfective
Negative
Polite
Terminal Form
Computing