救難 きゅうなん浮標 ふひょうじゃありませんでした
kyūna nfuhyōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 救難浮標

1. Was not a rescue buoy.; Was not a distress signal.

Past/Perfective
Negative
Polite
Terminal Form