助动词have的用法.pptx

文档介绍：这篇我们详细讲讲助动词have的用法。一、have做助动词,后面常跟动词的过去分词一起构成完成时态(”have+过去式"结构)。根据
时态人称不同,have可以用has或者had以及跟to或者情态动词连用等。+过去分词,构成现在完成时态,如:Have y
ou heard about Peter and Corinne?你听说过彼特和科琳的事情吗?I have had this pen
for three years. 这只笔我已经用了3年了。+过去分词,构成过去完成时态,如:I realized tha
t I had met him 。By the end of last month, they h
ad finished the work. 上月未他们就已经完成了工作。 have+been+现在分词,构成将来完成时态,
如:We'll have been living here for two years next ,我们就
已经在这里住了两年了。I will have been studying English for 8 years till next
month. 到下个月为止,我学英语已达八年了。+have+过去分词,构成假设语气完成式(perfect condit
ional),一般表示“推测、假设之意”。I would have told you,but I didn't see