it's hard for sb to dosth 还是 it's hard for sb doing sth?_百度知...

for sb to do sth作主语。It's hard （for me to stay at home alone at night主语）.我一个人呆在家里很难。

worth 只接ing worth doing sth.所以，It'worth for sb doing 是对的，for sb 可以放句尾。例：It's worth mentioning that I am a good man.还有说法是worth sth.如：He is worth the praise.顺便解一个worthwhile,worth 只做表语,也就是接在be动词后面,而worthwhile做表语的时候后面不接to ...

正确的应该是It’s time (for sb)to do sth。

不可以的。It's adj.for sb to do sth for sb to do sth是真正的主语，sb是to do sth的逻辑主语的。如：It is impossible for him to get up early.It's important (for me)to carry on practicing speaking for learning English.本句中的practicing是on的宾语；speaking是practicing的宾语；...

right,wrong等）+of sb.+to do sth.It's +difficult(easy,hard ,important,interesting等）+for sb.+to do sth.例如：It's kind of you to help me.It's hard for you to learn English well.当形容词是表示人的性格特点和品质方面的词就常常用of sb，除此之外一般都用for sb.形式。

It's+形容词+for sb +to do sth与It's+形容词+of sb to do sth的区别为：指代不同、用法不同、侧重点不同。一、指代不同 1、It's+形容词+for sb to do sth：什么样的某人做某事。2、It's+形容词+of sb to do sth：某人什么什么做某事。二、用法不同 1、It's+形容词+for sb ...

It's time to do sth. 后加动词原形，是该做什么事的时候了。例子：it's time to rest. 是该休息的时候了。It's time for (doing) sth. 后加动词ing形式或名词，意思：是该某人做什么事的时候了。It's time for resting. 是该休息的时候了。

it是形式主语，to do sth 是真正的主语，形容词作表语。例如：It's important to learn English well.翻译：学好英语非常重要。简介：1、It is +adj+for sb+to do sth.对于某人来说做某事是怎么样的。例如：It is hard for me to learn English well.对于我来说，学好英语真是太难的了。（...

1.it （形式主语）takes（谓语）(sb.)（间接宾语）some time （直接宾语）to do sth.（真正的主语，是由不定时短语充当的）2.sb.（主语）spend （谓语）some time（宾语）(in)doing sth（状语）由此可见，主语是动词短语时，用第一个句型，着重指“做某事”；第二句型主语必须是人。

to do正确，for sb to do sth是动词不定式复合结构，其中for sb是不定式逻辑主语，这是不定式标志；动名词逻辑主语是名词所有格。Wait for somebody to do something.如He is waiting for his mother to pick him up.他正在等他妈妈来接他。近义词 delay 英 [dɪ'leɪ] 美 [d...