I guess you mean the diffence between "You" and "Yao",In chinese ,it's more pop to use "You" to express have ,"Yao"to express want.Could your explain the exactly meaning of "have" in your quest . I just know the meaning of" have" like: I have a watch(wo you yi zhi biao).I have to go(wo bi xu zou le ). I have got a nice trip reward(wo de dao le yi zhang hen bang de lv xing quan).Sorry for that, my En sucks -_-