动词不定式的否定是加not,那want to do?

问题描述:

动词不定式的否定是加not,那want to do?
还有have to do,need to do?

你说的“动词不定式的否定是加not”是不确切的,应该说情态动词和助动词的否定式加not,实义动词一般加don't,比如你说的want to do的否定式就是don't want to do
有什么疑问还可以问我,我一直在线.try to do 变try not to do?try to do的否定还是don't try to do,但是你说的try not to do也有这个,但是意思不同,don't try to do我不试着去做,try not to do是“我试着不去做”,意思很明显不同的。另外,你补充了have to do和want to do是一样的。但是need不同,need在做实义动词时和want他们一样,是don't need to do;但做情态动词时和can他们一样,是needn't。还有什么继续问哈。