便宜 べんぎ置籍 ちせき せんではありませんでした
bengichisekisendewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 便宜置籍船

1. Was not a cheap registered ship.; Was not an inexpensive registered vessel.

Past/Perfective
Negative
Polite
Formal Register