应该可以分为主语定语从句与宾语定语从句。例如
A friend is someone who knows all about you and still loves you. 朋友就是这样的人--他了解你的一切而仍然喜欢你
Those who find faults with others often lose their glamour. -Gorky 爱找别人阴暗面的人，自己也常常失去魅力。
定语从句可以用that与which来引导。
