She said that she __h_a_d_n_’_t _b_e_e_n_t_o__(not go to) the Great Wall yet.
用法：
过去完成时与when, before, as soon as, till/ until 等引导时间状语的从句连用， 强调动作发生的时间前后。
By Villa
构成：助动词had + 动词的过去分 词（V.pp)
用法：
1. 过去完成时动词表示过去某一时间或某 一动作之前完成的动作或状态。在强调过 去某一动作发生在另一动作之前时。
在强调过去某一个动作发生在另一个动作前常常用 过去完成时态。
1.他说他以前见过你。 He said that he ____h_a_d__se_e_n____ (see) you before.
stop ---- stopped drop ------- dropped
2. 不规则动词的变化见课本 94---96 页
用法：
2. 过去完成时词可以表示过去某一 时刻之前发生的动作或呈现的状态， 这一动作一直持续 或将继续下去。
1. 到了六点钟为止，他们已经工作了八小时了。
By six o’clock they __h_a_d_w__o_r_k_e_d_ (work)for eight hours.
b) 以 e 结尾的动词直接加 d
use ------ used
refuse ------ refused
c) 以辅音字母加 y 结尾的动词，把 y 改 i 再加 ed
study ----- studied carry ----- carried
d) 以重读闭音节结尾的，前面有单个元音字母时， 双写辅音字母，再加 ed
例如：1. 她到家之前她的孩子已经睡着了。 When she got home her children ___h_a_d__s_le_p_t__(sleep).
2. 在他们到达之前电影已经开始了。 Before they arrived here the film ___h_a_d____ already ___st_a_r_t_e_d___ (start).
5. My friend __b_o_u_g_h_t___ (buy) the car two years ago.
He ____h_a_s__h_a_d______ (buy) it for two years.
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1. 到昨晚上，他已写完那封信。 By yesterday evening he _h_a_d__w_r_it_t_e_n_ (write) that letter. 2. 他说他以前见过你。 He said that he __h_a_d__s_e_en____(see) you before.
3. 当我进来时，他已做完了作业。 When I came in he ___h_a_d__fi_n_i_sh_e_d____(finish) his homework.
3. 我完成作业了就去睡觉了。 Last night, as soon as I ___h_a_d__fi_n_is_h_e_d___ (finish) my work I went to sleep.
1. After he __h_a_d__fi_n_is_h_e_d___ (finish) his work he went out.
2. 到六点钟为止他们已经工作八小时了。 By six o’clock they ___h_a_d__w_o_r_k_e_d__(work) for eight hours.
过去分词的构成： 过去完成时的构成：由助动词 1. 规则动词的变化： had + 动词的过去分词（V.pp)
a) 一般情况下在动词后面加 ed work ------ worked play -------- played
过去完成时与 by then(截止到那时); by 9 o’clock(直到 九点钟) by the end of …(在…结束/末之前); by the time…(在…时之前); up till then (直到那时); up until last night(直到昨晚）等连用，表示过去的过 去。
用法：
3. 过去完成时和 already, just, ever, yet 等连用表示过去的过去。
例如：1. 他告诉我说他们队已经赢了。 He told me that his team ___h__a_d___ already ____w_o_n_____ (win).
2. 她说她仍没去过长城。
2. The children ran away after they __h_ad__b_r_o_k_en__ (break) the window. 3. I went to Tom’s house but he __h_a_d__g_o_n_e_ (go) out.
4. Annie told me that his father ___h_a_d_g_o_n_e___ ( go ) to Paris and he __w_o_u_l_d_c_o_m__e_ ( come ) back in a few days.
2. 我到广州时，他在那里很长时间了。
When I ___(be) there for a long time.
3.到上个月中旬我们在北京住了有五年时间了。
By the middle of last month we ___h_a_d_l_i_v_ed_____(live) in Beijing for five years.