泥水 でいすい稼業 かぎょうではありませんでした
deisuikagyōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 泥水稼業

1. Was not a construction/building trade.; Was not in the construction/building industry.

Past/Perfective
Negative
Polite
Formal Register