球面 きゅうめん幾何 きか がくじゃありませんでした
kyūmenkikagakujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 球面幾何学

1. Was not spherical geometry.; It wasn't spherical geometry.

Past/Perfective
Negative
Polite
Terminal Form
Mathematics