中堅 ちゅうけん企業 きぎょうではありませんでした
chūkenkigyōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 中堅企業

1. Was not a mid-sized company.; Was not a company of moderate size.

Past/Perfective
Negative
Polite
Formal Register