don not have to do sth.don not need to do sth.need not do st

don not have to do sth.don not need to do sth.need not do st You don't need to do sth.还有 You need not do sth 中的need分别是什么词 don't have to do sth 是否等于don't need to do sth 和needn't do st 用 have to do sth/don not have to do sth 写英语校规 Do not trr to do sth 与Don\'t try to do sth的区别 don not need to do和need not do 的区别 Don't try to do sth.和 Try not to do sth.有什么区别? need to do sth,need do sth.needn`t do sth和don`t need有什么不同! want to do sth ,seem to do sth ,help to do sth,need to do st need sth to do 英语中没有need not do sth. need not to do 和don‘t need to do,哪个对?