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i don't know what,to do还是to doing还是do还是to doit
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(2)I do not know what doing next.（错误） 以上第1句为正确句子，第2句为错误句子。 第1个句子实际上宾语从句简化形式,不定式to do与疑问代词what一起构成不定式短语做谓语动词宾语 。 I do not know what to do next.（ 简单句 ） =I do know what I will do next （ 连接代词what引导 ...
如： I know little about shopping online. Can you show me how to do it.我对网购不怎么了解，你能教我如何网购吗？ 注：在"疑问代词+to+不及物动词+介词"的结构中不能缺失介词。如： When I feel stressed, I don't know who to talk.（错误） When I feel stressed, I don't know who to talk to.（正确。
关于这个问题，咱先须了解 how和 what的区别，哈。 A. how 是副词，副词就做状语，哈。记住，做状语时有两种情况，才用 how，如： 1.how 后面的动词是及物的，及物就须带宾语，后面不缺宾语时，如：. He doesn't know how to do his homework.. 解说：how后面的动词 do 后有宾语 homework ，不缺宾语，成分与意思都 ...
二、对 know to do sth 的正确理解. 事实上， know 后面能不能接 to do sth ，取决于我们要想表示什么意思。 1. 如果我们要表示 " 知道如何做某事 " ，即会做某事或知道做某事的方法，此时确实不能直接说 know to do sth ，要说成 know how to do sth 。如： 他会弹钢琴。
what to do和how to do it 的区别 。 这两个短语都是特殊疑问词加不定式构成的，相当于宾语从句。 what to do是完整的（what是do的宾语），表示做什么，故不定式后不可再加宾语， 如： I don't know what to do. (= I don't know what I can do .)。
个人认为算是。 I don't know what to do中的"what to do"虽然不是一个独立的句子，没有主语谓语，但人教版九年级的课本Unit3在学习 grammar-objective clause的时候，是将其列入宾语从句的语法点下面的。 …
"带wh-词的不定式分句what to do"中，其"逻辑主语"是必须是句子主语（这里即是：I），而疑问代词"what"是不定式"to do"的宾语。 知友提问的例句，根据层次分析法的现代英语语法的研究成果，语法结构解析如下： I\know\what to do\
I don't know what should I do. 的同義字The correct grammar is "I don't know what i should do." Actually those two sentences have the same meaning.|"idk what i SHOULD do" means i dont know what is right for me to do/what is the better thing to do. "idk what to do" just means you just dont know what to do, without thinking about 다른 사람's 생각 |I don't know what should I do is asking ...
know+sb/sth或者know+that从句，know后面一般不接不定式或者分词作宾语，一般都是接that从句，that可省略。但在一些情况可接不定式，如后接"疑问词（why除外）+不定式"。know后面加doing还是todo1、know既可用作不及物动词,也可用作及物动词。用作及物动词作"知道,懂得"解时,可接表示事物的名词、代词 ...
I don't know what you are doing. :tick: 2. I don't know what is happen ing. :tick: I don't know what happen is. :cross: 3. I don't know what is going on. :tick: I don't know what going on is. :cross: unless you put "going on" in quotation marks or otherwise indicate that you are asking about the grammatical character of "going on". But I don't ...