西武 せいぶ新宿 しんじゅく せんではありません
seibushinjukusendewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 西武新宿線

1. Is not the Seibu Shinjuku Line.; It is not the Seibu Shinjuku Line.

Negative
Polite
Formal Register
Business