A 这种时态由would/should+完成式构成:
肯定式: I would/should have worked
you would have worked等
否定式: I would not/should not have worked等
疑问式: would/should I have worked?等
否定疑问式: should I not have/shouldnt I have worked?
would you not have/wouldnt you have worked?
B 这种形式用于:
(a)条件句中。
(b)would和should的特殊用法中。
(c)过去时中,相当于将来完成时:
I hope he will have finished before we get back.
我希望在我们回来之前他已经做完。
I hoped he would have finished before we got back.
我曾经希望在我们回来之前他已经做完。
恐怖宣传片!伊斯兰国胁迫金发男孩持枪枪决囚犯
体坛英语资讯:China beats Iran to make first win for new coach Gao
体坛英语资讯:China beats Turkey at Intl Womens Volleyball Tournament
体坛英语资讯:Djokovic and Dementieva stunned, Federer and Serena fight through
体坛英语资讯:Romulo leaves Figueirense to return to Flamengo
哪些少有的习惯能助你走向成功
体坛英语资讯:United accepts record $131 mln Madrid bid for Ronaldo
体坛英语资讯:Roddick wins opener at Queens Club
体坛英语资讯:Japan beat Chinese duo to be crowned China Open mens doubles
体坛英语资讯:Real Madrid names Pellegrini as new coach
体坛英语资讯:Kaka completes transfer from AC Milan to Real Madrid
美国总统辩论第二轮 再次互相伤害
体坛英语资讯:Mourinho hopes Chinas enthusiasm inspires team win
体坛英语资讯:Police warn Lakers fans over NBA championship celebrations
体坛英语资讯:China sweep Canada in three-game Sino-Canada Challenge
体坛英语资讯:Lakers viewed as favorites at NBA finals
体坛英语资讯:Villa wooed by Barcelona
英语美文:别把过去的失败当成未来的常态
体坛英语资讯:Decision on Kakas future will be taken on Monday, says Berlusconi
笑容是如何出卖你的真实情绪的
希拉里“邮件门”是俄罗斯背后捣鬼?
关于英国你不得不知的30件事!
国际英语资讯:Syrian air strike targets IS-held cave in Aleppo, killing dozens
体坛英语资讯:Brazil defeats Egypt 4-3 in Group B match of Confederations Cup
体坛英语资讯:Bremen lifts German Cup
体坛英语资讯:Bayern warn Real stay away from Ribery, says report
体坛英语资讯:Iraq holds S Africa to scoreless draw in Confederations Cup curtain-raiser
体坛英语资讯:Magic dispatches Cavaliers to make NBA Finals
美国总统驴象之争:希拉里赢得第一次辩论
体坛英语资讯:Federer completes Grand Slam sweep