do whatever you could to help him这里do和could作用用法?

WHATEVER YOU WANNA DO Whatever you do I will whatever you do等于什么 i will surport you whatever you do WHEREVER WILL YOU GO WHATEVER YOU DO wherever you go,whatever you do Whatever you do you have my Do whatever you want to do!Do whatever you want to do! Do whatever you like什么意思? You always refuse whatever I do翻译 I can do whatever you thik go ahead;you can do whatever yougo ahead;you can do whatever you like or dislike. 寻歌whenever you go whatever yo do里面好像有whenever you go whatever yo do whatever you take you do whatever you like,i do whatever i like,everybody are free是什么意思 Whatever you do,whatever you say,I only want to tell youI don't Whatever you do,do it by your heart Whatever I do ,I do it for you!的意思 I can do whatever you ask me to do.句子中的whatever从句的什么成分?