空軍 くうぐん大尉 たいいではありませんでした
kūguntaiidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 空軍大尉

1. Was not a military (air force) captain.; Was not an air force major.

Past/Perfective
Negative
Polite
Formal Register