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...
We form the present perfect with the verb 'have' and the past participle of the main verb. So the main verb here is 'achieve' and 'have' is an auxiliary or help verb. 我们用动词 have 和主动词的过去分词构成现在完成时。所以这里的主动词是 achieve,而 have 是助动词或辅助动词。 It helps...
ADAM英语句子分析0014 Present Perfect vs. Past Tense vs. Present Perfect Progressive(prepared by: alexcwlin; edited by: Adam Lam)(某些措辞可能不雅或冒犯, 请读者原谅和自行选择) #0014 Sentence to Analyze:[The company’s coffers have been bled dry from years of unrestrained spending, and for qui...
解析 present perfect tense,past perfect tense现在完成时和过去完成时用法的区别在于,看他们有无两个表过去的时间,若有,就用过去完成时!1.现在完成时表示过去发生某动作从过去一直持续到现在(将来还有可能继续下去)...结果一 题目 present perfect tense,past perfect tense两者的用法,用中文答 答案 present perfect...
past perfect tense : had/hadn't+pp. e.g.I had finished my work already last night. present perfect tense : have/has/haven't/hasn't+pp. e.g.I have given my homework to Miss Lee already. e.g.May hasn't returned her book yet. *you add 'already' and 'yet'* 看...
Simple past tense and present perfect tense一般过去时和现在完成时There are some differences between the一般过去时和现在完成时之间有一些simple past tense and the present perfect区别。tense.. We use the simple past tense to tell what我们使用一般过去时来讲述过去发生happened in the past.的事情。Daniel...
意思是我的父母曾经结过婚10年.言下之意即现在已离婚了. 有时候无提到个timing会比较 mon 用 present perfect tense 是因为有个 assumption- 把发生了的动作当作与现在有关. 如果发生了的动作是跟现在无关的话 就须要指明时间才可配合用past tense. 当然这个assumption并不是绝对的 很多时候无指示 ...
Grammar语法Simple past tense and present perfect tense一般过去时和现在完成时一般过去时和现在完成时之间有一些不There are some differences between the simple past同的地方 。tense and the present perfect tense.· 我们用一般过去时述说过去发生的事。. We use the simple past tense to tell what happened...
1. 现在完成时用来描述一个从过去开始并持续到现在的事件，可能会继续下去。它通常与时间段“for”或时间点“since”连用。例如：“I have studied English for 3 years.”（我学英语已经三年了。）这里的“studied”表示从过去（三年以前）开始的学习一直持续到现在，并且可能会继续下去。2. 过去完成...
I read thestory of the Trojan War last week.Work out the rule We use( the present perfect tense/the simple pasttense)to talk about a past experience which hasa connection to the present.We use( the present perfect tense/the simple pasttense)to talk about a completed action in thepast. ...