不同语法书对于名词性从句关联词的总结各不相同，自己总结了下，望老师指点！

wh-疑问词：what，which，who，whom，whose, whatever,  whomever, whoever, whichever, when, where, why, how 

融合关系词：what, who, whoever, whatever, whichever, whomever, whosever, when, where, whenever, wherever, however

这样分对不对？有以下几个问题请老师指点！

1.whatever, whomever, whoever, whichever可否划为wh-疑问词的话? 可否理解为what, whom，who，which的语气加强。例如：

I don't know whoever said that.

I don't know whomever you voted for.

I don't know whatever it is.

I don't know whichever you like.

2.what, which, whose都可以引导主宾表同从句，在从句中作主宾表定？下面这些句子对不对？

What caused the failure is not clear at the moment.（作主语）

What she did after that is not clear to us. （作宾语）

What elements are is known to the students. （作表语）

What motive he could have had is not quite clear to us. （作定语）

第4个what motive这里的what应该叫连接形容词？

Which is the best of all those ways is uncertain.（做主语）

Which design is the best must be tried in practice.（作定语）

Which you like best is not clear to us.（宾语）

Which is yours is not clear to us. （表语）

Whose fault it is is quite clear now. (作定语)

I wondered whose the coat was. (作表语)

Whose is best is unknown. (作主语)

Whose the coat belongs to is unknown. (作宾语)

前两个whose与后两个whose的词性感觉不一样，还是后两个whose后省略了名词？
以上例句均是主语从句，在表宾同中同样可以作这些成分？

3. who可否从融合关系词中择出来？

曹老师前面帖子中提到who在现代英语中已不做融合关系词，只应用于一些固定谚语中。例如：Who laughs last laughs best。但是很多语法书依然归为融合关系词。

4.whenever，wherever可以引导名词性从句，很少见到。有些语法书上把whosever，however也划归为融合关系词，但是没有任何例句。麻烦老师举例解释下！

5.融合关系词是只包括融合关系代词，融合关系副词两种，还是加上融合关系形容词三种？

Whatever result we get must be checked. 感觉whatever在这里应该是形容词。