have，have got，have to的否定形式一共有几种？ 做助动词：疑问句：把have提前，如Have you been there before？Have you done your homework？否定句，变have为haven't.情态动词疑问句：用Do提问，如Do you have to do this right now？Does Tom have to go to school？否定句：加don't，如I don't have to do it now.Tom doesn't have to go to school today.做“有”讲的时候，和一般动词用法相同.我知道的就是这些，
情态动词have to的否定形式是don`t have to还是haven`t to？ have to\"不得不否定是don`t have to.
情态动词have to的否定形式是don`t have to还是haven`t to？ don`t have tohave to是作为实义动词用的
have to have是什么词性 我的意思是 他是实意动词还是情态动词 变否定句变成 you don‘t have to 还是 前一个是情态动词，后一个是实义动词变否定是 you don‘t have to
情态动词have to的否定形式是don`t have to还是haven`t to？如题.
请告诉我have to是不是情态动词 是情态动词1 have to的用法I have to get up early tomorrow morning.我明天早晨必须（不得不）早起.1.have（has）to+动词原形have（has）to后面要用动词原形.当主语为第三人称单数时用has to～，当句子是过去时用ha.
have to的否定和疑问句 have to是情态动词 应该不能加助动词变吧？ 否定：don't have to疑问句：Do.have to.
情态动词have to的否定形式 cf：You don't have to knock—just walk in.不必敲门—进来就是了used toWe didn't use to like him much when we were at school.以前我们同学时，我并不太喜欢他.
