航空 こうくう警務 けいむ たいじゃなかったです
kōkūkeimutaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 航空警務隊

1. Wasn't the aviation security force.; Wasn't part of the aviation security force.

Past/Perfective
Negative
Polite
Casual Register