遠洋 えんよう貿易 ぼうえきではありませんでした
en'yōbōekidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 遠洋貿易

1. Was not oceanic trade.; Was not engaged in foreign trade.

Past/Perfective
Negative
Polite
Formal Register