want to的否定是don't want to,而decide +not to do?不都是动词不定式吗?
问题描述：
want to的否定是don't want to,而decide +not to do?不都是动词不定式吗?
答
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
回答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.