確認 かくにん飛行 ひこう物体 ぶったいじゃなかったです
mikakunin hikōbuttaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 未確認飛行物体

1. Was not a UFO.; Wasn't an unidentified flying object.

Past/Perfective
Negative
Polite
Casual Register