漁業 ぎょぎょう監視 かんし せんではありませんでした
gyogyōkanshisendewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 漁業監視船

1. Was not a fisheries monitoring vessel.; Was not a fishing patrol boat.

Past/Perfective
Negative
Polite
Formal Register