I dont know why do you do it.正确吗

I dont know why do you do it.正确吗 i dont know what do you say I Dont even know who are you so why do u add Do you know why I am crying? i dont know what ()(do)next.can you help me? I dont know how do you help me?message? do you know why～和why do you know～哪个正确? Do you know why At least,I know why?I dont know! I love you Why You Do not Know My Why do not you trust me I I dont think she can do it without you,（ Do You Know Why 歌词