日米 にちべい修好 しゅうこう通商 つうしょう条約 じょうやくじゃなかったです
ni chibe ishū kō tsūshōjōyakujanakattadesu

Noun
Desu Copula

The polite, past negative form of 日米修好通商条約

1. Was not the Japan-US Treaty of Amity and Commerce.

Past/Perfective
Negative
Polite
Casual Register