鉄道 てつどう警察 けいさつ たいじゃないです
tetsudōkeisatsutaijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 鉄道警察隊

1. It's not the railway police force.; I'm not with the railway police.

Negative
Polite
Casual Register