现在完成进行时句型主语+have（has）been+ 动词-ing肯定式 I/We have been working.疑问式 Have you been working？简略回答 Yes，I/we have. No，I/we havent.肯定式 He/She/It has been working. 疑问式 Has he/she/it been working？简略回答 Yes，he/she/it has. No，he/she/it hasnt.（一）表示从过去某时开始一直持续到现在的动作，并且还将持续下去。The Chinese have been making paper for two thousand years.中国有2000年的造纸历史。（动作还将继续下去）（二）表示在说话时刻之前到现在正在进行的动作。We have been waiting for you for half an hour.我们已经等你半个钟头了(人还没到，如同在电话里说的，还会继续等)（三）有些现在完成进行时的句子等同于现在完成时的句子
