日本にっぽん国有こくゆう鉄道てつどうじゃなかったです
nipponkokuyūtetsudōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 日本国有鉄道

1. Was not Japan National Railway.; Wasn't the Japan National Railway.

Past/Perfective
Negative
Polite
Casual Register