have been doing的用法,时态动词的基本含义

have been doing的用法,时态动词的基本含义

⊙▂⊙ have been doing是现在完成进行时. have done是现在完成时. 现在完成时的用法①表示结果的现在完成时现在完成时着眼于过去的动作对现在产生的结果或影响.这是现1.have been doing 是现在完成进行时态，表示动作从过去某一时间开始一直延续到现在，现在动作可能刚刚终止，也可能仍然在进行中常与since和for引导的时间庄状语连用。2.have done 是

havebeendoing的用法系统标签：havebeendoingwaiti动作状语带时间repai havebeendoing现在完成进‎行时。havep.p现在完成‎时。二者有共同‎点，但最大区别‎在（一）时态构成：has/have + been doing （二）意义和用法：1. 基本含义和用法现在完成进行时强调过去发生的动作“一直持续”到现在。Why are you so tired? 你干嘛这样疲倦呢？

havebeendoing是什么时态用法have been doing是现在完成进行时。例句：The car must have been doing at least 100 miles an hour. 这车速肯定每小时至少100英里。I have have been doing是现在完成进行时。例句：The car must have been doing at least 100 miles an hour. 这车速肯定每小时至少100英里。I have been doing some h

∩▂∩ 篇1:doing不定式用法总结She's doing a terrific job. 她活儿干得真棒。What the deuce is he doing? 他到底在干什么？Good heavens, what are you doing? 天哪，你在干什么？篇2:u1. 现在完成进行时现在完成进行时(havebeendoing) 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，或将继续延续至将…china-b|基于1 个网页2. 完

has been doing的用法has been doing 是现在完成进行时一、结构I/ we/ you/ they have been doing sthhe/ she/ it has been doing sth二穗橡、主要用法表示从have been doing 现在完成进行时。现在完成进行时用法一、现在完成进行时的谓语动词构成have/has been doing 二、现在完成进行时的功能（一）表示从过去某时开