引導名詞性從句且在從句中作主語時，who意為“誰”，含有疑問意味；whoever意為“無論誰”，不含疑問意味。whoever在引導名詞性從句時，相當于anyone who，其中who引導一個定語從句緊隨其后。另外whoever還可以引導讓步狀語從句，這時whoever相當于no matter who。

具體用法

（1）Who has taken away my bag is unknown.

不知道是誰拿走了我的包。

（2）Whoever comes will be welcome.

=Anyone who comes will be welcome.

無論誰來都歡迎。

（3）I’m not going to let you in,no matter who you are.

=I’m not going to let you in,whoever you are.

我怕不會讓你進去的，不關你是誰。

2.wh-+ever

（1）引導名詞性從句：whoever=anyone who

whomever=anyone whom

whatever=anything that

whichever=anything that

whosever=anyone whose

（2）引導讓步狀語從句：whoever=no matter who

whomever=no matter whom

whatever=no matter what

whichever=no matter which

whosever=no matter whose