護送ごそう船団せんだん方式ほうしきじゃありませんでした
gosōsenda nhōshikijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 護送船団方式

1. Was not a convoy system.; Was not in the form of a convoy.

Past/Perfective
Negative
Polite
Terminal Form
Economics