however,whatever的区别：
1、whatever用作强调的关系代词时，意思是“任何(事物)，每样(事物)”，用于引导名词性从句。所引导的从句作主语时，谓语要用单数形式。
2、whatever经常用于疑问句中,可加强语气,意思是“无论什么,不管什么”。
3、whatever用作连接代词时，还可以用在让步状语从句中表示“无论什么”，引出的从句可以放在句首或句尾。当whatever所引导的从句如果是不说自明的，可以省略一部分。
4、whatever也可用作形容词,表示“无论什么，任何的”，只用作定语。
5、whatever还可用作副词,表示“一点儿都”,用在否定句或疑问句中,和any,not,anything,nothing连用。
6、however后可直接加形容词/副词，再加主语，加谓语动词。在该结构句中，however表示“无论……，不管……”。
7、however属于副词，与whatever不同，不可作动词的宾语。whatever可作代词，因此可作动词的宾语，如whatever she say。
8、however + 形容词或副词，whatever + 名词或名词短语。
拓展资料
however
1、This was not an easy decision. It is, however, a decision that we feel is dictated by our duty
这很难抉择。不过，我们觉得自己有义务作出决定。
2、You should always strive to achieve more, however well you have done before
无论之前取得何等辉煌的成就，都应该不断努力进取。
3、However we adopt healthcare reform, it isn't going to save major amounts of money
不管我们采取何种医疗改革措施，都省不下太多钱。
4、The 20,000 or however many who come to watch would love to be out on the pitch
约两万名来看比赛的观众都希望能身处球场之上。
5、However did you find this place in such weather?
你到底是怎样在这样的天气里找到这个地方的？
whatever
1、Franklin was free to do pretty much whatever he pleased
富兰克林几乎可以做自己喜欢做的任何事情。
2、We shall love you whatever happens, Diana
戴安娜，不管发生什么，我们都爱你。
3、There is no evidence whatever that competition in broadcasting has ever reduced costs
没有任何证据表明，广播业的竞争使成本有所降低。
4、Whatever can you mean?
你到底是什么意思？
5、I thought that my upbringing was 'normal', whatever that is
我认为我的成长过程甭管怎么说还算“正常”。