営団地下鉄 えいだんちかてつ

eidanchikatetsu

1. Not Toei Subway.

1. Was the Teito Rapid Transit Authority; Was the Tokyo Metro

1. Tokyo Metro (trains); doing something on the Tokyo Metro

1. Tokyo Metro's; Of the Tokyo Metro

1. It is not the Teito Rapid Transit Authority.; It is not the Tokyo Metro.

1. It's not Toei Subway.; It isn't Toei Subway.

1. Was the Teito Line.

1. Tokyo Metro

1. It is not the Teito Rapid Transit Authority.; It is not the Tokyo Metro.

1. Wasn't Toei Subway.; Wasn't the Tokyo Metro.

1. Probably the Toei Subway.; Probably the Tokyo Metro.

1. Was not the Teito Rapid Transit Authority.; Was not the Tokyo Metro.

1. Wasn't Toei Subway.; Wasn't the Tokyo Metro.

1. Probably the Toei Subway.

1. Was not the Teito Rapid Transit Authority.; Was not the Tokyo Metro.

1. If it were the Tokyo Metro…; If it was the Tokyo Metro…

1. If it were the Teito Rapid Transit Authority; If it was the Tokyo Metro

1. If/when Toei Subway