have been doing something,have been down

have been doing something,have been down

●＾● 1. 现在完成进行时4.现在完成进行时(have been doing):和现在进行时很像1) 用法：表示某一动作开始于过去某一时间，延续或重复地出现至今…zhidao.baidu|基于1060个网页should have been doing是过去完成进行时态。should :modal 应该；(常用于纠正别人)应当；(提出或征询建议)该；(表示预期)应该会；可能。have:vt. 有；持有；

have been doing something信息详情意思翻译一直在做些什么双语使用场景Someone, other than Lady Luck, musthave been doing somethingright.───除了幸运女神外，一定要想很好地区分have done和have been doing，我们需要从两个方面来讨论：一、完成时态和完成进行时态本身意义的差别；二、要结合动词的不同延续特点。首先我们来看

3.现在完成进行时（have been doing）现在完成进行时表示的是：对一个现在正在进行动作的总结。例如：③GRAMMAR TUTORSHIP 进行式to be doing完成进行式to have been doing一般式doing english.nbyg.net|基于212个网页2. 完成进行时再如纵向完成进行时(to have been

havebeendoingsomething是什么时态自从上周发生了那次不幸事故之后我一直睡得很不好have been doing something是什么时态现在完成进行时；现在完成进行式：比如说，have beenI have been doing it for years. 我已经做了几年了.说明这个行动没有断过，现在还在做.现在完成时，强调过去完成的动作对现在的影响.例：Would you like to have lu

would have been doing是什么时态过去将来完成进行时，多用于虚拟句。表示“我现在本来应该做……”例如：If it wasn't because of you, I would have been playing with my dog at Sb.issaidtohavebeendoingsth. somebodyisalwaysdoingsomething somebodykeepsdoingsomething somebodyisdoingsomethingallthetime 也是忙于做某事。bebusydoingsth. beoccu