Have you ever complained about your memory because .Have you ever complained about your memory because you find it simply impossible to memorize all the new words you are learning?第一个词为什么用have 为什么不用 do 或者 are to memorize

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Haveyouevercomplainedaboutyourmemorybecause.Haveyouevercomplainedaboutyourmemorybecauseyoufinditsimp

Have you ever complained about your memory because .Have you ever complained about your memory because you find it simply impossible to memorize all the new words you are learning?第一个词为什么用have 为什么不用 do 或者 are to memorize
Have you ever complained about your memory because .
Have you ever complained about your memory because you find it simply impossible to memorize all the new words you are learning?
第一个词为什么用have 为什么不用 do 或者 are
to memorize 这里为什么要用不定时 具体是怎么回事?

Have you ever complained about your memory because .Have you ever complained about your memory because you find it simply impossible to memorize all the new words you are learning?第一个词为什么用have 为什么不用 do 或者 are to memorize
1,2,3楼都正确,have you ever +动词过去分词,现在完成时的疑问形式,现在完成时表示过去发生的事对现在有影响,“你抱怨过没有.,如果你有此经历,会理解我说的事.”
find it +形容词+to do,it为形式宾语,形容词是宾语补足语,修饰说明宾语,to do为真正的宾语,
此句型实际上与find him strange相同,只是宾语不是一个单词,而是动词不定式,太长,如果后面再跟一个词的宾语补足语,显得头重脚轻,所以才用it作形式宾语,把to do放宾语补足语后面.
（it作形式宾语其实与作形式主语的情况类似： It is impossible to memorize all the words.---it= to memorize all the words.

第一个单词要用have,因为要用现在完成时，表示的是“你曾经抱怨过...”；to memorize all the new words you are learning?
是动词不定式作宾语，用it作形式宾语，因为后面有个宾语补足语。

ever 可以说是一个完成时态的标志
Have complained 是一个现在完成时（是否曾经抱怨过），变成疑问句也就是将 Have 提前。

ci此句话用的是现在完成时态，即 ;have /has +过去分词，表示到目前为止“抱怨”这个动作是否发生过.(have/has 是助动词用来提问）
do也可作助动词，它用于一般现在时的句子中提问或否定
are 是系动词 用于主系表结构的句子中提问或否定

因为有ever，表示曾经，所以用have。
impossible to do, 表示不可能记住

造句：Have you ever. Have you ever heard Have you ever have you ever与have you ever been的区别 you have ever said before和you have ever said 英语造句have you ever “Have You Ever Seen Me? Have you ever seen snow? have you ever.是什么句型 have you ever fed them? Have you ever had these? Have you ever been employed? Where have you ever been? have you ever [ ] [drink]coke? Have you ever ( ) [study] abroad? have you ever move house have you ever have Italian food? have you ever 和 do you ever 有什么区别?