1)融合性关系代词whichever和whatever的区别就如同which和what的区别，即是否有一个限定范围，whichever指限定范围内的任何一个，whatever指没有范围限定的任何一个。所以，whichever作为融合型关系代词= any of the things that, 而 whatever= anything that.

作为融合型关系限定词后接名词，如，whichever car = any one of the cars that, 而whatever car则= any car that。

2)whosever为融合性关系限定词，后接名词，例如：whosever car = anyone's car that？however作为融合型关系副词通常引导副词性关系分句（即状语从句），而不引导名词性从句。however= in any way that. 例如：You can do it however you like. = You can do it in any way you like.

3)融合型关系限定词whatever car= any car that;  whosever car= anyone's car that