很多地方都说不可以，只可以引导状语从句。但是按理来说wherever, whenever, however应该能替代where,when,how来作为连接副词引导名词性从句吧。

比如wherever you want to go is fine with me.

Wherever you want to go is fine with me. 这个句子是不规范的，应改为：

Wherever you want to go, it is fine with me.

《剑桥语法》把这种从句成为副词性关系分句。wherever/whenever为融合型关系副词，引导状语从句。例如为：

Liz can go wherever/where she likes.

Whenever I see her, she is reading.

曹荣禄 -

擅长：动词用法,句法问题 | 采纳率 82% | 回答于 1秒前

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黎反修 - 英语翻译（已退休） 1秒前

擅长：数词用法,存在句,英语考试

wherever, whenever, however 不能引导名词性从句，只能引导状语从句。

donaldliudong 1秒前

可以的。他们引导的名词性从句叫名词性关系从句，还都带有"让步"的含义。