分水 ぶんすい山脈 さんみゃくではありませんでした
bunsuisammyakudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 分水山脈

1. Was not a watershed mountain range.; Was not a dividing range.

Past/Perfective
Negative
Polite
Formal Register