軽便 けいべん鉄道 てつどうじゃなかったです
keiben tetsudōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 軽便鉄道

1. Wasn't a light railway.; Wasn't a narrow-gauge railway.

Past/Perfective
Negative
Polite
Casual Register