- 构成虚拟语气：“should have done”是一种常见的虚拟语气结构，表示过去本应该做某事但实际上没有做。
should have done表示本该做某事而实际未做，shouldn't have done表示本不该做某事却做了，这是中学都...
14 【英语语法】Unit 27 could do/could have done情态could表推测 [English Grammar In Use] ST英语课 25:07 【英语语法】Unit 26 情态动词 “能”can/ could/ be able to [English Grammar In Use] ST英语课 45:08 【英语语法】Unit 25 when if 和 主将从现 [English Grammar In Use] ST英语课 ...
【英语语法】unit 46 have sth done 使役动词及have用法总结 实意/助/使役 [english grammar in use] st英语课 21:08 【英语语法】 unit 45 it is said that “据说啊 大家都说” 来八卦啊 [english grammar in use] st英语课 34:35 【英语语法】unit 44 passive iii 被动语态(三) 主表被/惯用语/...
Should have done grammar? 1: Should have + past participle can mean something thatwould have been a good idea, but that you didn't do it. It's like giving advice about the past when you say it to someone else, or regretting what you did or didn't do when you're talking about yo...
Should have done grammar? 1: Should have + past participle can mean something thatwould have been a good idea, but that you didn't do it. It's like giving advice about the past when you say it to someone else, or regretting what you did or didn't do when you're talking about yo...
在Betty S Azar的Understanding and Using English Grammar fourth edition中，Could Have, Would Have和Should Have分别被看成是情态动词could, would和should的过去式，这对理解还是有一些帮助的。接下来，我们来具体分析一下这三个词。Could have Could have表示某事在过去可能发生，但却没有发生。例如：I could ...
Grammarislogical!特别提醒 suggest：1.建议（虚拟）；2.表明，暗示（不虚拟）insist:1.坚决要求（虚拟）；2.坚持说，陈述事实（不虚拟）1.Heinsistedthathe___w_a_s___(be)ingoodhealthandthathes_h_o__u_ld__b_e_s_e_n_t(send)toworkthere.2.Thedarkcloudssuggestedthatitwasgoingtorain(rain)andmy...
■should加完成式：should have done表示“本应该做某事，但事实上却没有做”；shouldn’t have done表示“本不该做某事，但事实上却做了”。如：You should have got up earlier. 你本应该早点起的。You shouldn’t have told him about it. 你本不该把这件事告诉他的。■should与ought to的...
(4) 在虚拟语气中只能用should。如(from www.yygrammar.com): He suggested that I should go there. 他建议我去那里。 (5) 注意ought to的否定式与疑问式。如: You ought not to do it. 你不应该做此事。 —Ought he to start now? 他现在该动身了吗?