通商 つうしょう航海 こうかい条約 じょうやくじゃありませんでした
tsūshōkōkaijōyakujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 通商航海条約

1. Was not a commercial navigation treaty.; Was not a treaty regarding commercial shipping.

Past/Perfective
Negative
Polite
Terminal Form