用 have to do sth/don not have to do sth 写英语校规

用 have to do sth/don not have to do sth 写英语校规 don't have to do sth 是否等于don't need to do sth 和needn't do sth have sth to do have to do sth don’t have time 是to do sth 还是doing sth have sth to do with sb/sth have sth.to do with have sth to do 例句 have sth do...have sth to do...have sth doing...have sth done... don not have to do sth.don not need to do sth.need not do sth 三个词组有什么区别?don not have to do sth.don not need to do sth.need not do sth 三个词组有什么区别? have sb do sth 还是have sb to do sth have sb to do sth还是have sb do sth? have sb do sth 还是 have sb to do sth? have sth to do sth 什么意思 ? have sb do sth =get sb doing sth? Do you have anything to tell me?I don't have anything to do.这两句是不定式还是纯粹have sth。to do的句式？ have a derise to do sth 这个句型的to do sth可不可以用doing sth 代替 All you have to do is do sth为什么是do sth?而不是to do sth? have nothing to do but do sth还是doing sth