他的三种形式是he、him、his。
he主格,him宾格,形容词性的物主代词和名词性的物主代词都是his,反身代词himself。
例句:He teaches himself.
例句:His sister makes him smile.
例句:He is smart and can take care of himself.
她的三种形式:
she主格,her宾格,形容词性的物主代词her,名词性的物主代词hers,反身代词herself 。
例句:She can look after herself.
例句:Hers is over there.
例句:Her English book is on the desk.