航空 こうくう 操縦 そうじゅう じゅつじゃなかったです
kōkūkisōjū jutsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 航空機操縦術

1. Wasn't piloting aircraft.; Didn't know how to fly.

Past/Perfective
Negative
Polite
Casual Register