Question

i don't know to do what 这句话到底错在哪里？

i don't know to do what 这句话到底错在哪里？

我知道正确的说法是 i don't know what to do
但 i don't know to do what 这个我觉得也对呀，to do what这个不定式作宾语，不可以吗？
这个句子类似于 i don't want to go to school
to go to school就是不定式作want的宾语
为什么 to do what作know的宾语就不对呢

求语法好的详细解答

Answer 1

1，I don't want to go to school里边儿，to go to school 是要want 的宾语，属于动词不定式做宾语这个语法现象。
2， I don't know what to do就是另外一个语法现象啦。 what to do是一句话了，相当于是what I should do一类，视为一个完整的句子。那这个语法现象就是v(动词）+宾语从句了。 在宾语从句中，疑问词前置。 i don't know where to go, I don't know who to believe...这类的吧, 也可以补全为 ：i don't know where I should go to , I don't know who i can believe,

Answer 2

I don't know what to do 其实是下句的缩写形式
I don't know what I should do

这是定语从句简化的结构 what + to do
再如：She has no idea where to go.

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Answer 3

这完全就是中国式英语啊 大错