need to do的否定为什么不可以是 need not to do否定在不定式?

来源：学生作业帮助网编辑：作业帮时间：2024/04/28 03:08:32

need to do的否定为什么不可以是 need not to do否定在不定式?
need to do的否定为什么不可以是 need not to do
否定在不定式?

need to do的否定为什么不可以是 need not to do否定在不定式?
可以这样否定不定式
但这样是否定宾语一般说否定一个动词短语应该是否定动词即：don't/doesn't need to do

need有两种用法，一种如 need doing 这时可在后面直接加not 一般表被动语态
还有就是need to do 那么否定就必须是don't need to do

全部展开

need not do是正确的
【【need not可用于现在时和过去时。各人称的形式都一样。need not表示“无义务”。它表示说话人允许不去做某事，或仅仅表示某事并非必要：
Employer：You needn't make two copies．One will do．
雇主：你不用打印两份。一份就够了。
Give them this cheque．They needn't send me a receipt．
把这张支票给他们。他们不用给我送来收据。
You needn't change（your clothes）．Just come as you are．
你不用换（衣服）了。就穿着现在穿的衣服来吧。
must not表示否定的义务，即说话人叫你不要如何或是特别强调地劝告你不可如何：
You mustn't repeat this to anyone．
你不能把这件事告诉任何别人。
Notice in shop：Staff must not smoke when serving customers．
商店通告：工作人员在为顾客服务时一律不许抽烟。
You mustn't leave your car unlocked．This place is full of thieves．
你千万不能不锁车门就离开。这地方遍地是小偷。】】
谢谢啦。

收起

就像want to do的否定式只能是don't want to do

这里的need不是情态动词的用法了，而是行为动词，所以不能在上面直接否定。

need to do的否定为什么不可以是 need not to do否定在不定式? need的否定形式可以是need need to do sth为啥在否定形式时不可以呢?need doing sth在否定形式时怎样才能判断need to do sth与need doing sth?例题：1.He does not need________(do) too much homework.2.You need to eat more veg need的否定形式可以是need need to do sth为啥在否定形式时不可以呢?need doing sth在否定形式时怎样才能判断need to do sth与need doing sth?例题：1.He does not need________(do) too much homework.2.You need to eat more veg need to do的否定形式动词不定式的否定是加not,那want to do?还有have to do,need to do? need to do sth的否定形式是什么? I need to do some shopping on my way home from holidayi need do some shopping...可以么,为什么必须是NEED TO DO 呢 need sb to do,need如果变成情态动词,need sb to do 是否要变成need sb do?这是个句型吗?有人说可以这样搭配,有人说不可以,有无need sb do的形式? 求Do you need to wear a coat there?的否定回答是No,I don't.还是 No,I needn't.我认为应该是前者,因为这里的need是实意动词啊.或者是不是两个都可以. would you not to do sth.否定为什么不可以用don't代替not? need是情态动词 need do结构为什么还有need to do 是need do 还是 need to do 求need+n 的肯定句和否定句、need+to do 的肯定句和否定句、need doing 的肯定句和否定句 be supposed to do的否定为什么? 为什么ask sb to do sth的否定形式是ask sb not to do sth但 I want to be an actor.的否定形式是I don't want to be an actor不都是动词不定式吗? What we need to do is encourage kids encourage做isWhat we need to do is encourage kidsencourage做is的表语为什么不加to 怎么判断need后加to do 或是do?两者的否定如何变形? 关于英语I need to get some money to pay for summer camp为什么用to get ,need作情态动词不是后面可以带do的么to get 还有个选项是get