天幕 てんまく製造 せいぞう にんじゃなかったです
temmakuseizōni nja nakattadesu

Noun
Desu Copula

The polite, past negative form of 天幕製造人

1. Was not a sky-screen maker.; Wasn't a sky-screen maker.

Past/Perfective
Negative
Polite
Casual Register