When will he come is not known哪里出错

问题描述:

When will he come is not known哪里出错

额额,这样吧应该:When he will come is not known.
因为主语从句要求用陈述句语序,而不是一般疑问句语序.
你把will放he前面就成了一般疑问句语序了.
“is”的前面这部分“When he will come”就是主语从句.
希望这样说你能明白.