北洋 ほくよう漁業 ぎょぎょうではありませんでした
hokuyōgyogyōdewa arimasendeshita

Noun
Desu Copula

The polite, past negative form of 北洋漁業

1. Was not a North Pacific fisheries.; Was not related to North Pacific fisheries.

Past/Perfective
Negative
Polite
Formal Register