視聴覚 しちょうかく機器 ききじゃなかったです
shichōkakukikijanakattadesu

Noun
Desu Copula

The polite, past negative form of 視聴覚機器

1. Wasn't audiovisual equipment.; Wasn't a visual/audio device.

Past/Perfective
Negative
Polite
Casual Register