最主要是词性不同.
patient可做名词和形容词两种词性.做名词时是“病人”之意(可数);做形容词时是"“有耐心的”意思.
patience只做名词,意为“耐性,耐心”
patiently为副词,意为“耐心地”
例:She is very patient with young children.
She treats her patient patiently.
Facing the naughty boy,she lost her patience.
题目的话网上有很多,其实这样的问题最好翻牛津或朗文,都有例句又清楚.