ask sb to do sth和ask sb doing sth

ask sb. to do sth. 是正确用法。

1、并没有ask sb. doing sth.这个说法, 请求别人做的事情是未发生的,不能用进行时。

2、让某人做某事句型还有: make sb. do sth. ；let sb. do sth.；have sb. do sth；get sb. to do sth. 等。

3、接双宾语句型：Subject(主语)+Verb(谓语)+ Indirect object(间接宾语)+Direct object (直接宾语)

例: My father bought me a present.

扩展资料

例句:

1、I've come to ask you to do me a favour. 

我来这儿是想请你帮个忙。   

2、Don't ask me to do impossible things.      

别叫我做办不到的事。

3、It is not in reason to ask him to do such a job.      

让他去从事这种工作是不合常情的。  

4、Is this what they ask you to do?      

这些是他们要你去做的吗？  

5、I couldn't ask you to do that. that's too much.      

我不能要你怎么做，那太麻烦你了。  

只有ask sb to do sth，后面那种用法是不存在的。ask的详细用法如下：及物动词 vt.
1. 问;询问[+wh-][O6][O1]
She asked him his name.
她问他叫什么。
He asked me where Tom was.
他问我汤姆在何处。 2. 请求;要求[+to-v][O2][O1][+that]
He asked that they (should) be allowed to use a dictionary.
他要求准许他们用词典。
I came to ask you a favor.
我来是想请你帮我一个忙。
I asked her to get in touch with Henry as soon as possible.
我要求她尽快与亨利联系。 3. 索(价);要求得到[(+for/of)]
They asked too much of her.
他们对她要求过高。
He asked twenty dollars for it.
这件东西他要价二十元。 4. 邀请[O][O2]
We have asked the Conrads to come for dinner on Friday evening.
我们已邀请康拉德一家在星期五晚上来吃饭。
不及物动词 vi.
1. 问;询问;问候[(+about)]
Tell George my parents ask about him.
转告乔治我父母问他好。
Why do you ask?
你为何要问? 2. 要求;请求[(+for)]
She asked for a cup of tea.

ask sb to do sth 是对的

ask sb to do sth
要求某人做某事

ask的详细用法如下：

及物动词 vt.

1. 问;询问[+wh-][O6][O1]
   

   She asked him his name.
   她问他叫什么。

   He asked me where Tom was.
   他问我汤姆在何处。

2. 请求;要求[+to-v][O2][O1][+that]
   He asked that they (should) be allowed to use a dictionary.
   他要求准许他们用词典。
   I came to ask you a favor.
   我来是想请你帮我一个忙。
   I asked her to get in touch with Henry as soon as possible.
   我要求她尽快与亨利联系。 

3. 索(价);要求得到[(+for/of)]
   They asked too much of her.
   他们对她要求过高。
   He asked twenty dollars for it.
   这件东西他要价二十元。 

4. 邀请[O][O2]
   We have asked the Conrads to come for dinner on Friday evening.
   我们已邀请康拉德一家在星期五晚上来吃饭。

不及物动词 vi.

1. 问;询问;问候[(+about)]
   Tell George my parents ask about him.
   转告乔治我父母问他好。
   Why do you ask?
   你为何要问? 

2. 要求;请求[(+for)]
   She asked for a cup of tea.

ask sb doing sth没有这种用法，就只有ask sb to do sth的用法。

好像没ask sb doing sth 我学这么多年都没用过