present perfect 加has/have+past participle 而present perfect progressive has/have+been+verb+ingparticiple 过去分词 相关知识点: 试题来源: 解析present perfect 和 present perfect continuous 的最大区别在: 前者表示某事情在过去已经完全完成,可不知道确定时间....
present perfect 加has/have+past participle 而present perfect progressive has/have+been+verb+ingparticiple 过去分词 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析解答一 举报present perfect 和 present perfect continuous 的最大区别在: 前者表示某事情在过去已经完全完成,可不知道确定时间....
现在完成进行时(The present perfect progressive) 由 have/has been +-ing 分词构成; 过去完成进行时( The past perfect prog… baike.baidu.com|基于55个网页 2. 现在完成进行体 ... Come and sit in the middle. 来,坐在中间。 1The Present Perfect Progressive现在完成进行体(时): 211 B.C. 公元前...
你说的这些是时态的名称。present simple：一般现在时 continuous：进行时 past simple：一般过去时。present perfect：现在完成时
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It is formed with a passive variant of the verb to have + the presentparticiple(verb form ending in -ing). Similarly to the present perfect tense, this verb form primarily occurs with dynamic verbs that describe an activity (e.g. learn, listen, read), a process (e.g. change, grow, ...
wenku.baidu.com|基于135个网页 3. 现在进行时态 1.2现在进行时态(Present Continuous):(右边为虚拟语气)1.3 现在完成时态(Present Perfect):(右边为虚拟语气)1.4 现在完成进 … zhidao.baidu.com|基于66个网页 更多释义 例句 释义: 全部,现在进行时,现在进行式,现在进行时态...
the present perfect the form of a verb that shows what happened during a period of time up to and including the present, formed in English with the present tense of the verb ‘have’ and a past participle, as in ‘he has gone’ 〔动词的〕现在完成式 ...
1、1 现在完成时 Present perfect 接触一:肯定句式 现在完成时的肯定句式是“have(has)过去分词”。如: We have just finished our homework She has gone home 注意:1)该句式中的have或has是助动词,has用于第三人称单数,其它人称一律用have。 2)该句式中have(has)和过去分词之间可用just插入。 3)把该句式...
past perfect tense (过去完成时 )过去完成时表示一个动作或状态在过去某一时间或动作之前已经完成或结束,也可能是早已完成或结束,即“过去的过去”;也可以指过去的动作延续到过去的某个时刻. 过去完成时由“had +动词的过去分词”构成, had通常用于任何人称.过去完成时主要有以下几点用法 1. 表示过去某一时间或...