単斜 たんしゃ晶系 しょうけいじゃなかったです
tanshashōkeijanakattadesu

Noun
Desu Copula

The polite, past negative form of 単斜晶系

1. Was not monoclinic.; Wasn't monoclinic.

Past/Perfective
Negative
Polite
Casual Register
Geology