have has 是助动词吗

have has 是助动词吗 用have,has和助动词 Tom has never been to China.．（在第一个助动词后）这里的has是助动词吗? have/has to(必须）的否定是借助助动词还是直接加not have是助动词吗?还有.need是情态动词吗? He has had aletter from Tom.第一个have不是助动词吗,为什么要改成had? 句子have/has ‘有’,变否定句在have/has后加not,变疑问句时将have/has提前.请问能加助动词do/does吗? have是加过去分词吗have是助动词吗那助动词不是应该加动词原形吗 have/has got表示有,拥有,占有,变疑问句和否定句不在借助于助动词do 和does.是时态原因吗? 现在完成时是由have/has+v过去分词那么变一般疑问句是为什么要把have和has提前做句首.不是说陈述句便一般疑问句时,有be动词提前,没有时加助动词do或does吗? 有关have的部分倒装Hardly has he any time for play.是对的还是Hardly does he have any time for play.不理解原因：have不是助动词,即用于完成时的have.那部分倒装不是需要does做have的助动词吗?再比如,I never have Jill has lunch at school every day.has 是助动词吗 do does did have has had 作助动词怎么造句 助动词句子中,什么时候have变has 什么时候变单三 why 是助动词吗 will是助动词吗? be是助动词吗 have 是助动词还是情态动词?