need do;need to do;need doing的区别?要例句、解释、怎么用、

是need do 还是 need to do need sth to do need to do造句 need的用法?need to do还是need do? need do/need to do/need doing的意思 need doing need to do 区别 什么时候用need do 什么时候用need to do?,比如need buy 与need to buy have need to do造句 need to do sth 和need do sth的区别 need to do sth 和need do sth列句 need to do跟need do的区别? need to do 和 need do的区别 what i need to do what need i do? Everything we need to do ___(do) Do you need to do homework?why? 英语语法中,need sb sth是need sb to do 还是need sb do /doing sth? need是情态动词 need do结构 为什么还有need to do need do;need to do;need doing的区别?要例句、解释、怎么用、