斜陽 しゃよう産業 さんぎょうじゃありませんでした
sha yōsangyōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 斜陽産業

1. Was not a declining industry.; Was not a sunset industry.

Past/Perfective
Negative
Polite
Terminal Form