语法图解
探究发现
①In 1996, I moved to Canada with my husband and I have been living there since then.
②Liu Fang has been playing the pipa for the last three hours.
③She has been performing concerts every day since last month.
④You have been saying this for five years.
⑤I have seen the film.
⑥I have been reading the book.
⑦They have known each other since childhood.
[我的发现]
(1)①②③④⑥句用了现在完成进行时；⑤⑦句用了现在完成时。
(2)由以上各句可知，现在完成进行时的构成为：have/has＋been＋动词的现在分词。现在完成时的构成为：have/has＋动词的过去分词。
