共通 きょうつう せん信号 しんごうじゃなかったです
kyōtsūsen shingōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 共通線信号

1. There wasn't a common signal.; It wasn't a common signal.

Past/Perfective
Negative
Polite
Casual Register
Computing