友好 ゆうこう通商 つうしょう航海 こうかいじゃなかったです
yūkōtsūshōkōkaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 友好通商航海

1. Wasn't friendly commerce/navigation.; Wasn't amicable trade/sailing.

Past/Perfective
Negative
Polite
Casual Register