1. 在从句中作主语 
The young man who came in just now is a lecturer. 刚才进来的年轻男士是个学者
2、 在从句中作定语 
Fortunately,  I eventually live in a house whose(ofwhich)rent is lower. 幸运的是,我最终住在了一个费用较低的房子里。 
3、 在从句中作宾语,其中关系代词前有介词时,指人用 whom 
She is the star with whom you have  is the one I admire. 你所谈论的她就是这个我所崇拜的
修饰some,any,no,every等词构成的不定代词的定语都后置
Let’s go somewhere quiet. 咱们去找个安静一点的地方吧。
There is nothing important in today's newspaper. 今天报纸上没有什么重要的东西。
Do you have anything more to say? 你还有什么话要说吗?
1)如果先行词是不定代词,要用that指代:
The cost of living crisis is something that is hard to ignore for everyone.
修饰代词的定语的例句
修饰代词的定语从句,例如,This is him who stole the car yesterday.(就是他昨天偷了车)。