"i dont know who is the boy" & "i dont know who the boy is" which one is correct Please give detailed explaination ,thank you very much .

i dont know who am i My lovers dont know what is pub.I dont know how to explain.Who can help me?thank u. i dont know who you are i dont know who is the boy & i dont know who the boy is which one is correct Please give detailed explaination ,thank you very much . The door is open.Who ____(open)it?Sorry,I dont't know.为什么? I DONT KNOW THE PERSON WHO IS STANDING UNDER THE BIG TREE改为同义句 i dont know who i am without you中文意思 who are the two__(act) Dorry,i dont know. Who care.I dont i dont know f why?I dont know! i dont know her “i dont know chinese ” what is this.i dont know chines中文意思是什么 “I dont know !”是什么意思啊? i dont want to know I Dont even know who are you so why do u add Who is she?I don'know