烤鸭们对完成时应该并不陌生,我们都知道完成时的两种常见类别就是现在完成时和过去完成时。现在完成时就是指:过去发生或已经发生的动作对现在造成的影响或结果。其基本构成是:have/has+...
been是be的过去分词;done是do的过去分词。常见的用法是have done和have been done,have done是主动形式的现在完成式,have been done是被动式的现在完成式。 1、done的含义及相关短语用法 形容词adj.已完成的;煮熟的;合乎礼仪的;合乎规矩的感叹词表示接受建议)动词·做...
过去将来完成时:(would have done) 例:I believed by the end of that year an advanced version of that software would have been developed, but I was wrong. 我坚信到那年年底为止,那个软件的新版本将被开发出来。但是我错了。 16 过去将来完成进行时:(would hav...
13.过去将来完成时:(would have done) 表示到过去将来某一时间已经完成的动作,并且对过去将来那一时间点产生影响。 例:I believed by the end of that year an advanced version of tha...
成人高考学位英语备考练习:非谓语动词 一、不定式 (一)基本结构 to do to be doing to have done to be done to have been done 学位英语真题汇编 1、Judging from his manners at the party, he does
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