物主代词不可与a,an,this,that,these,those,so,any,several,no,each,every,such,another,hich等词一起前置,修饰一个名词,而必须用双重所有格。
公式为
a,an,this,that 名词 of 名词性物主代词。如
a friend of mine.
each brother of his.