pauper的複數形式怎麼寫

例句：

A pauper has as much a right to learn as a king.

窮人和國王一樣均有受教育的權利。

Most residents in this district are urban pauper.

在這個區居住的大部分人都是城市貧民。

He guards the sleep of his pauper master if he were a prince.

即使主人是乞丐，他也會像守護王子一樣伴隨着主人。