職業 しょくぎょう せい難聴 なんちょうではありませんでした
shokugyōsei nanchōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 職業性難聴

1. Was not occupational deafness.; Was not work-related hearing loss.

Past/Perfective
Negative
Polite
Formal Register