海洋 かいよう監視 かんし衛星 えうせいじゃありませんでした
kaiyōkanshieuseijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 海洋監視衛星

1. Was not a marine observation satellite.; Was not an ocean monitoring satellite.

Past/Perfective
Negative
Polite
Terminal Form