炭鉱 たんこう労働 ろうどう しゃじゃありませんでした
tankōrōdōshajārimasendeshita

Noun
Desu Copula

The polite, past negative form of 炭鉱労働者

1. Was not a coal miner.; Was not a coal mining worker.

Past/Perfective
Negative
Polite
Terminal Form