现在完成进行时特殊疑问句例句

现在完成进行时的构成

肯定句：主语 + have/has + been + 现在分词...

否定句：主语 + have/has + not + been + 现在分词...

疑问句：Have/Has + 主语 + been + 现在分词...?

疑问代词/疑问副词 + have/has + 主语 + been + 现在分词...?

1、2 现在完成进行时的肯定句

句型：主语 + have/has + been + 现在分词...

现在完成进行时的肯定句由“助动词have/has + been（been是be动词的过去分词）+ 现在分词”构成：

I've been trying to find out her telephone number.我一直在查问她的电话号码。

They have been widening the road.他们在拓宽这条路。

She is very tired. She's been typing letters all day.她很累了。她整天都在录入信件。