斜面 しゃめん対策 たいさく こうじゃありませんでした
shamentaisaku kōja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 斜面対策工

1. Was not a slope countermeasure work.; Was not a slope protection structure.

Past/Perfective
Negative
Polite
Terminal Form