have to 的否定形式是haven't to 还是don't have to .它们有什么区别~

have的否定形式是haven 情态动词have to的否定形式是don`t have to还是haven`t to? 情态动词have to的否定形式是don`t have to还是haven`t to?如题. have to 的否定形式是haven't to 还是don't have to .它们有什么区别~ have got to否定形式是haven't got to还是not have got to?有几种否定形式? have的否定形式是haven't还是don't have have to 的否定形式是? have的否定形式是什么?是have to 的一般否定形式！ have got to的否定形式是什么样的 have got to 的否定形式 have to和have got to 的否定形式 ______the programme,they have to stay there for another two weeks.”A.Not completing B.Not completerd C.Not having completed D.Having not completed为什么?为什么不选D?现在完成时的否定形式明明是haven't have to的否定形式和疑问句形式分别是? 情态动词have to的否定形式have to的否定形式是don't have to吧,而其他情态动词几乎都是后面直接加not,还有没有像have to这种的? have got to的否定形式究竟是什么, have got to的否定形式是什么?$(acontent) I have been to Shanghai改为否定句,是这样写吗I haven't been to Shanghai have been的否定形式