せいりょうじゃありませんでした
西遼じゃありませんでした
seiryōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of せいりょう

1. It was not West Liao.; I was not from West Liao.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana