夏至迎熙
五、 现在完成时现在完成时由have的人称形式加过去分词构成。他的肯定、否定及疑问形式如下: i have read it. i have not read it. have you read it? 现在完成时表示现刻以前发生的动作或情况,可以是: 1. 到现在为止的这一时期中发生的情况(可能时多次动作的总和,也可表示状态和习惯性动作): we have opened up 200 mu of land this year. how many pages have you covered today? i haven’t seen him for many days. 2. 对现状有影响的某一已发生的动作: the delegation has already left. i have seen the film many times. the city has taken on a new look. 注: 这个时态有时还可以表示过去曾发生过一次或多次的情况,也可以说是一种经历: all our children have had measles. man’s hairs have grown white in a single might. he says that he has seen a meteor at some time. 这个时态的基本特点是它和现在有密切的联系,或是讲迄今为止这一段时间的情况,或是讲一个影响现状的动作,这样它不是从时间上就是从后果上和现在联系起来。根据这个特点我们可以判断什么时候用一般过去时,什么时候用现在完成时: 1. 当有一个表示过去某时的状语(包括when)时,不能用现在完成时: i saw her a minute ago. just now xiao lin came to see you. when did you get to know it? 2.当有一个表示到现在为止这段时间的状语时,多用现在完成时: up till now we have planted over 24,000 fruit trees. we haven’t had any physical training classes this week. he has learned a good deal since he came here. 3.在用already, yet, just, as yet, ever, never这类副词作状语时,常可用现在完成时: this is the second game. they ’ve already won a game. have you got the plan ready yet? ?no, not yet. i’ve just received a money order. 4.在单独谈一个过去的动作,不涉及它对现在的影响时,通常用一般过去时,如果谈一件已经发生的事,不考虑它是什么时候发生的,而主要考虑对现在的影响,多用现在完成时: did you get up very early? has he got up? what did you have for lunch? have you had lunch? i got the news from xiao yu. i’ve got no news from him. 注: 有since引起的状语时,主要谓语通常用完成时态: we met in 1972,and have been good friends ever since (then). it has rained a great deal since you left. we haven’t seen each other again since them (since we parted in 1952). 但在表示时间长度时可用一般现在时。 l 在使用一个表示状态的动词(如be, seem等)作谓语时,间或也可用现在时态: it’s ok since i fixed it. it seems a long time since i was here. i’m getting interested in china since you came here. 间或用过去时,特别时在口语中。 i lost ten pounds since i started swimming. 在since引起的状语从句中,通常用一般过去时。但间或可用现在完成时: i haven’t seen him since i have been back. since i have known her, she has been fond of sports. 有时同样一句汉语,由于使用场合不用,译成英语时可能需要不同时态: has xiao yang come? did xiao yang come? how many people have gone to the factory? how many people went to the factory? we haven’t invited him. we didn’t invite him. 有时同样一个动作,也随着说话的意图不同而用不同时态表示: has he gone to town? how did he go there? 后一句谈动作本身,与现在无联系。 have you had your lunch? where did you have it? 你吃中午饭了吗?在那吃的? has she left? why did she leave so early? 某些动词的现在完成时刻表示一直持续到现在的状态: how have you been (recently)? the conference has lasted five days. we’ve known each other since we were children. 特别是动词be,是常常这样用的: he’s been back for three days. (不能用has come back) she has been a teacher for ten years. (不能说has become) he has been in college for a year. (不能说has entered) 由于come, become, enter和get up 等动词都只代表一个短暂的动作,不能代表一个延续的状态,这是需要用be来表示延续的状态:另外有少数动词(主要是work, study, teach, live等)可用于现在完成时表示一直持续到现在的一个动作: how long have you worked here? she has taught english for many years. we’ve lived here for quite a few years. 但大多数动词不宜这样用,而需用现在完成进行时。注:have been (to)长可用来表示“到过某地”或“刚去做过某事” have you ever been to xi’an? xiao liu has just been here. we’ve been here(there)many times. l 现在完成时还可用在表示时间或条件的状语从句中,表示将来某时业已完成的动作: i’ll go and see the exhibition as soon as i have got the recorder fixed. we’ll start at five o’clock if it has stopped raining by then i will gibe my opinion when i have read the book through. 这利用“现在完成时”时表示这动作将在另一动作之前完成。如果两个动词同时发生,或几乎同时发生,(也就是说一个动作紧接着另一个动作),一般就不用这个时态: i’ll let you know as soon as i hear from her. she’ll write you when she gets there. 在这样的情况下(特别是当我们用的是get, arrive, see, hear, leave, return 等代表迅即完成的动作的动词时),多用一般现在时。有时两种时态都可以用: we’ll leave as soon as it stops(has stopped) raining. i’ll tell him after you leave (have left). 注:have got 形式上时现在完成时,却和have时同一个意思: she has got (=has) a slight temperature. have you got (=do you have) any sisters? 另外,现在有一种倾向,特别是在美国,在随便谈话时,常用一般过去时代替现在完成时: i saw it already (=i have seen it already). did you return the records yet (=have you returned the records yet)? i just come back (=i’ve just come back).
小公举A酱
英语共有16种时态,分为一般现在时(do),一般过去时(did),一般将来时(willdo),现在进行时(is/am/aredoing)。
过去进行时(was/weredoing),将来进行时(可与一般将来时换用,willbedoing),现在完成时(have/hasdone)。
一般现在时:
1、概念:经常、反复发生的动作或行为某种状况。
2、时间状语:always,usually,often,sometimes,every week (day,year,month…),once a week,on Sundays,
3、基本结构:动词 原形 (如主语为第三人称单数,动词上要改为第三人称单数形式)
4、否定形式:am/is/are+not;此时态的谓语动词若为行为动词,则在其前加don't,如主语为第三人称单数,则用doesn't,同时还原行为动词。
5、一般疑问句:把be动词放于句首;用助动词do提问,如主语为第三人称单数,则用does,同时,还原行为动词。
以上内容参考:百度百科-时态
爱欧尼亚荒原
在英语中,一共有8个基本时态,分别来自于三时即过去、现在、将来。包括一般现在时、一般过去时、现在进行时、过去进行时、现在完成时、过去完成时、一般将来时、以及过去将来时。
一、一般现在时:
概念:经常、反复发生的动作或行为及现在的某种状况。
时间状语:always,usually,often,sometimes,every week(day,year,month…),once a week,on Sundays,etc.
基本结构:
①be动词;
②行为动词
否定形式:
①am/is/are+not;
②此时态的谓语动词若为行为动词,则在其前加don't,如主语为第三人称单数,则用doesn't,同时还原行为动词。
一般疑问句:
①把be动词放于句首;
②用助动词do提问,如主语为第三人称单数,则用does,同时,还原行为动词。
eg:
①It seldom snows here. 这里很少下雪。
②He is always ready to help others. 他总是乐于帮助别人。
③Action speaks louder than words. 事实胜雄辩。
二、一般过去时:
概念:过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为。
时间状语:ago,yesterday,the day before yesterday,last week(year,night,month…),in 1989,just now,at the age of 5,one day,long long ago,once upon a time,etc.
基本结构:
①be动词;
②行为动词
否定形式:
①was/were+not;
②在行为动词前加didn't,同时还原行为动词。
一般疑问句:
①was或were放于句首;
②用助动词do的过去式did提问,同时还原行为动词。
eg:
①She often came to help us in those days.
那些天她经常来帮助我们。
②I didn't know you were so busy.
我不知道你这么忙。
三、现在进行时:
概念:表示现阶段或说话时正在进行的动作及行为。
时间状语:now,at this time,these days,etc.
基本结构:am/is/are+doing.
否定形式:am/is/are+not+doing.
一般疑问句:把be动词放于句首。
eg:
①Are you feeling good today?你今天感觉如何?
②He is doing well in his lessons.在课上他表现得很好。
四、过去进行时:
概念:表示过去某段时间或某一时刻正在发生或进行的行为或动作。
时间状语:at this time yesterday,at that time或以when引导的谓语动词是一般过去时的时间状语等。
基本结构:was/were+doing
否定形式:was/were+not+doing.
一般疑问句:把was或were放于句首。
eg:
①At that time she was working in a company. 那段时间她在一家公司工作。
②When he came in, I was reading a newspaper. 他进来时,我正在读报纸。
五、现在完成时:
概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态。
时间状语:recently,lately,since…for…,in the past few years,etc.
基本结构:have/has+done.
否定形式:have/has+not+done.
一般疑问句:have或has提到句首。
eg:
①I've written an article. 我已经写了一篇论文。
②The countryside has changed a lot in the past few years. 在过去的几年,农村发生了巨大的变化。
六、过去完成时:
概念:以过去某个时间为标准,在此以前发生的动作或行为,或在过去某动作之前完成的行为,即“过去的过去”。
时间状语:before,by the end of last year(term,month…),etc.
基本结构:had+done.
否定形式:had+not+done.
一般疑问句:had提到句首。
eg:
①We had hoped that you would come, but you didn't. 那时我们希望你能来,但是你没有来。
②I had hardly opened the door when he hit me. 我刚打开门,他就打了我。
七、一般将来时:
概念:表示将要发生的动作或存在的状态及打算、计划或准备做某事。
时间状语:tomorrow,next day(week,month,year…),soon,in a few minutes,by…,the day after tomorrow,etc.
基本结构:
①am/is/are/going to+do;
②will+do.
否定形式:
①am/is/are+not going to+do;
②will+not+do
一般疑问句:
①am/is/are放于句首;
②will提到句首。
eg:
①They are going to have a competition with us in studies.他们将在学习中与我们竞争。
②It is going to rain.天要下雨了。
八、过去将来时:
概念:表示从过去某一时间看的将要发生的动作或存在的状态及打算、计划或准备做某事。
时间状语:the next day(week,month,year…),soon,in a few minutes,etc.
基本结构:
①was/were going to+do;
②would+do.
否定形式:
①was/were+not going to+do;
②would+not+do
一般疑问句:
①was/were放于句首;
②would提到句首。
eg:
①He said he would go to Beijing the next day. 他说他第二天要去北京。
②I asked who was going there. 我问,谁要去那里。
小蘑菇少吃点
简单说一下(详细的可参看<<薄冰英语语法>>) 一、现在一般时(现在时):表经常发生的动作或经常存在的状态。如:I go to school every day. (我每天上学)He is always like that.(他总是那样) 二、过去一般时(过去时):表过去某一时间发生的动作或存在的状态。如:Tom suddenly fell ill yesterday.(汤姆昨天突然病了) 三、将来一般时(将来时):表单纯的将来事实。如 He'll come next week.(他下周才来) 四、过去将来时:表在过去的将来某一时间发生的动作或存在的状态。如:I thought you would take the chance.(我还以为你会去试试呢) 五、现在完成时:现在完成时跨在两个时间之上,一是过去,一是现在。它的动作发生在过去,但对现在有影响或结果。如:She has had a good education.(她受过良好的教育) 六、过去完成时。与现在完成时相似,但过去完成时的动作在过去某一个时间完成,就是说发生在“过去的过去”。如I had finished my homework before supper.(晚饭前我就已经完成了家庭作业) 七、将来完成时:表示在将来某一时间之前完成的动作,并往往对将来某一时间产生影响。 如:I shall have finished reading the book by the end of this week.(我将在本周末前读完这本书) 八、现在进行时:表现在(说话人说话的这个时刻)正在进行的动作。如:What are you doing now?(你正在干什么呢?) 九、过去进行时。表过去某一时间正在进行的动作。如When I called him,he has having dinner.(我给他打电话的时候,他正在吃饭) 十、将来进行时:表将来某一时间正在进行的动作。如What will you be doing this time tomorrow?(明天的这个时候你会做什么?) 其他时态还有过去将来完成时、过去将来进行时、现在完成进行时、过去完成进行时、将来完成进行时,过去将来完成进行时。
暖暖烛光2016
一、一般现在时(The Indefinite Present Tense). 一般现在时表示经常性的或习惯性的动作、特征或状态。常见的一般现在时主要有以下三种句式: 1.肯定句式。一般现在时肯定句式主要由动词原形表示,第三人称单数的谓语动词后要加词尾-s或-es。动词be根据主语不同的人称有不同的形式,第一人称单数中动词be用am,第一人称复数、第二人称单数和复数以及第三人称复数中动词be用are的形式,第三人称单数中动词be用is,动词have在主语是第三人称单数中变为has,其余情况均用原形have。如: She is a worker. They are worker. He has a bike. We have a bike. I am the king of the world. 2.疑问句式。一般现在时变为疑问句时,一般在句首加助动词do或does的方式构成,第三人称单数时用does,其余情况都用do,主要动词一概不变,用原形;在以have或has为主要动词的句子中,可以直接将动词have或has提前放于句首,也可以在句首加动词do或does构成,have或has一律用原形have。如: Do you work? Does he work? Has she a cake? Does she have a cake? 其简略回答形式用“Yes+主语+动词”或“No+主语+动词+not”。如: Yes, I do. No, he does not. Yes, she has No, she has not. 3.否定句式。一般现在时的否定句式在动词前加do/does not的形式构成。如: She does not work. They do not have a cake. 此外,一般现在时的主要动词在第三人称单数时,要在词尾加-s或-es。其规则如下:以ch sh x s 或o结尾的动词加-es,以y结尾的动词要先把y改写成i后,再加-es;其余情况一般直接加-s即可。 二、现在进行时(The PresentContinuous Tense). 现在进行时一般用在表示现在或现阶段正在进行或发生的动作,或即将发生的动作,多指按计划或安排要进行的动作和表示反复出现的习惯性动作(如always总是、 continuously不断地等词)。现在进行时一般可以从句中找到时间标志词,如now, these days at the moment等词语,就必须用现在进行时态来表示。其构成形式为主语+be+现在分词+其他。现在进行时态的三种句式简要介绍如下: 1.肯定句式。现在进行时的肯定句式一般由“be+现在分词”构成。同样,be在不同的人称形式下,有不同的表现形式。在主语是第一人称单数中动词be用am,第一人称复数、第二人称单数和复数以及第三人称复数中动词be用are的形式,第三人称单数中动词be用is,如: They are working on the farm now. I’m leaving for BeiJing tomorrow. 2.否定句式。现在进行时的否定句式一般由“be+not+现在分词”构成。动词be的用法与在肯定句式情况下是相似的。如: He is not looking. 3.疑问句式。现在进行时的疑问句式一般把动词be放于句首构成:“be+主语+现在分词+其他?”,动词be在不同人称形式下的用法与在肯定句式情况下是相似。如: Is he always saying that? 回答时可以用“Yes+主语+动词”或“No+主语+动词+not”。如: Yes, she is. No, she is not. 同样,动词的现在分词的构成也是有规律的,一般情况在词尾直接加-ing来表示;在以不发音的e结尾的词,要先把e去掉,再加上-ing,如write的现在分词是writing;在以重读闭音节结尾只有一个辅音字母时,应先双写此辅音字母,再加-ing,如begin的现在分词是beginning。 三、一般将来时(The Future indefinite tense). 一般将来时多用于口语中,常表示要去做的事或可能要发生的事。一般将来时由be going to +动词不定式构成。其用法简单列举如下: 1.肯定句式。一般将来时的肯定句式由“be going to +动词不定式”构成。be在不同的人称形式下,其形式也是不同的:主语是第一人称单数用am、第二人称单数用are,第三人称单数用is,其余情况下均用are。如: We are going to visit guiyang. 2.否定句式。一般将来时的否定句式由“be not going to +动词不定式”构成。be在不同的人称形式下,变化与在肯定句式下相似。如: We are not going to stay with him. 3.疑问句式。一般将来时的疑问句式把be放于句首:“be+主语+ going to+其他?”构成,be在不同的人称形式下,变化与在肯定句式下相似。如: Is he going to talk with her teacher? 其回答形式为“Yes+主语+动词”或“No+主语+动词+not”。如: Yes, he is. No, he is not. 此外,动词不定式是无规则可循的,需要在学习中多积累才能正确牢记和运用。 四、一般过去时(The past Indefinite tense). 一般过去时表示过去某时发生的动作或情况。一般过去时用动词过去式表示。动词过去式按其构成形式有规则和不规则变化两种情况。规则动词的过去式一般直接在词尾加-ed,即:动词原形+ ed;无规则变化的需要边学边记。其用法简单列举如下: 1.肯定句式。一般过去时的肯定句式由“主语+动词过去式+其他”构成。Be作为主要动词应用时,在主语是第一人称单数和第三人称单数的情况下,用过去式was;其余人称情况下,用过去式were。如: She worked here . She was here . 2.否定句式。一般过去时的否定句式由:“主语+动词过去式+ not+其他”构成。be在不同的人称形式下,变化与在肯定句式下相似。如: I did not work here . We were not here. 3.疑问句式。一般过去时的疑问句式把动词be放在句首或在句首加助动词did构成。be在不同的人称形式下,变化与在肯定句式下相似。如: Did you work here? Was he here? 其简略回答形式用“Yes+主语+动词”或“No+主语+动词+not”。如: Yes, I did . No, I did not. 五、过去进行时(The past Continuous tense). 过去进行时态表示的是过去某个时间正在进行或发生的动作。其构成形式为:“主语+was/were+现在分词”构成。一般情况下,过去进行时态有一些提示性词语,如at this time yesterday , at that time,或由when引导的时间状语从句。过去进行时态用法简单列举如下: 1.肯定句式。过去进行时态的肯定句式一般体现为:“主语+was/were+现在分词+其他”构成。其中凡是在主语是单数人称情况下一律用was,复数人称情况下用were。如: I was working. We were working. 2. 否定句式。过去进行时态的否定句式构成形式为“主语+was/were+ not+现在分词+其他”构成。was/were的用法与肯定句式的用法相似。如: I was not working. We were not working. 3.疑问句式。过去进行时态的疑问句式只需把was/were提前放在句首即可。其构成形式为“was/were+主语+ not+现在分词+其他?”构成。如; Was she working? Were they working? 其简略回答形式用“Yes+主语+动词”或“No+主语+动词+not”。如: Yes, she was . No, she was not. 其中,过去进行时态的现在分词构成规则与现在进行时态的过去分词是相同的。 六、现在完成时(The Present Perfect tense). 现在完成时表示一个过去发生而对现在情况有影响的动作和从过去某时继续到现在的动作或状态。其构成形式为“主语+have(has)+过去分词+其他”。现在完成时用法简单列举如下: 1. 肯定句式。现在完成时的肯定句式一般表现为“主语+ have(has)+过去分词+其他”。have(has)的用法为,在主语是第三人称单数的情况下,用has;其余情况用have。如: He has been to Japan before. We have written it. 2. 否定句式。现在完成时的否定句式由“主语+ have(has)+ not+过去分词+其他”构成。其中have(has)的用法与肯定句式下的用法相似。如: They have not written it. He has not written it. 3.疑问句式。现在完成时的疑问句式只需把助动词have(has)提前放在句首即可。句式为“Have(has)+主语+过去分词+其他?”构成。其中have(has)的用法与肯定句式下的用法相似。如: Has she written it? Have you written it? 其简略回答形式用“Yes+主语+动词”或“No+主语+动词+not”。如: Yes, she has . No, she has not. 此外,现在完成时的过去分词与它的过式相同,不规则的动词的过去分词需要在日常学习中边学边记。值得强调的是,现在完成时与过去式是有既区别又有联系的。一般情况下,当有一个表示到现在为止这段时间的状语,用already, yet, just as yet, ever, never等这类副词作状语,或一件已经发生的事,不考虑它是什么时候发生的,而主要考虑对现在的影响时,多用现在完成时。 七、一般过去将来时(The Simple past future tense). 一般过去将来时往往表示从过去某时看将要发生的动作或存在的状态和过去习惯性的动作,说明在什么情况下往往如此。一般过去将来时句式由should或would+动词原形构成。总体来说,一般过去将来时主要有以下两种用法: 1.在表示过去某时看来将要发生的动作或存在的状态。其构成形式为“should或would+动词原形”。一般情况下should或would的用法是在主语是第一人称的句式下,常用should;其他人称的情况下常用would。如: My teacher said there would be an English exam tomorrow. 2. 一般过去将来时在表示习惯性的动作时,其句式为“should或would+动词原形+其他”构成。无论在什么人称情况下,都用would而不用should。如: Every evening he would talk with his neighbour. 八、过去完成时(The past perfect tense). 过去完成时是一个相对的时态,表示的是过去的过去,只有在和过去某时或某动作相比较时才用得到它。即过去某时前已发生的动作或存在的情况。过去完成时一般由“had+过去分词”构成。过去完成时在英语学习中应用相对较少,一般不常用。其句型略举如下: My mother had gone to work when I got up. 九、现在完成进行时(The present perfect Continuous tense). 现在完成进行时一般表示动作从过去某一时间可是一直延续到现在,现在这个动作可能刚刚终止,也可能仍然在进行着。现在完成进行时用法简单列举如下: 1. 肯定句式。现在完成进行时的肯定句式由“主语+have(has) been +现在分词+其他”构成。其中,主语是第三人称单数时用has;其余情况一律用have。如: She has been working. We haven been working. 2. 否定句式。现在完成进行时的否定句式由“主语+have(has)+ not +been +现在分词+其他”构成。其中have(has)的用法与肯定句式下的用法相似。如: She has no been working. We haven not been working. 3.疑问句式。现在完成进行时的疑问句式只需把助动词have(has)提前放在句首即可。句式为“Have(has)+主语+ been +现在分词+其他?”构成。其中have(has)的用法与肯定句式下的用法相似。如: Have you been working ? Has he been working ? 其简略回答形式用“Yes+主语+动词”或“No+主语+动词+not”。如: Yes, he has . No, he has not. 此外,有些不能用在现在完成进行时态的动词,如like, love, know, seen, hear等,这类动词只能用在现在完成时的情况下。 十、将来进行时(The future continuous tense). 将来进行时一般表示某一时刻或某段时间正在进行的动作,或即将或按计划将要发生的动作。将来进行时一般用法简单列举如下: 1. 肯定句式。将来进行时的肯定句式由“主语+shall(will) be +现在分词+其他”构成。其中shall一般常用在主语是第一人称的句子中;will用在第二人称和第三人称的句子中。如: We shall be doing . She will be doing. 2. 否定句式。将来进行时的否定句式由“主语+ shall(will)+ not+ be +现在分词+其他”构成。shall(will) 的用法与肯定句式下的用法相似。如: I shall not be doing. You will not be doing. You can take our lives, but you’ll never take. 3.疑问句式。将来进行时的疑问句式只需把shall(will)放在主语前,也可以加上疑问代词构成。其中shall(will)的用法与肯定句式下的用法相似。如: What will you be doing at eight tomorrw morning? 值得注意的是,在回答将来进行时的疑问句时,必须根据句子的实际问题作出稍微详细的回答。 十一、将来完成时(The future perfect tense). 将来完成时主要表示将来某个时间会发生的事情。将来完成时一般由“主语+ shall(will)+ have+过去分词+其他”构成。在主语是第三人称时用will;而其余情况用shall。如: I shall have finished this paper by supper. They will have arrived home by now. 十二、将来完成进行时(The future perfect continuous tense). 将来完成进行时表示将来某时前一直进行的动作。将来完成进行时的主要句型由“主语+ shall(will)+ have+ been+现在分词+其他”构成。其中shall(will)的用法是:在主语为第三人称时用will,其余情况用shall。如: In another month’s time, he will have been studying here for two years. 十三、过去将来时(The past future tense). 过去将来时包括一般过去将来时、过去将来进行时、过去将来完成时、过去将来完成时和过去将来完成进行时。简要介绍如下: 1. 一般过去将来时(The past future in definite tense). 一般过去将来时主要表示从过去某时看将来要发生的事情。其句型构成由“should/would+动词原形”构成。在主语是第一人称时用should;其他情况下用would。如: I thought you would agree with me. 2. 过去将来进行时(The past future Continuous tense). 过去将来进行时主要表示从过去某时看将来某时正在进行的动作或预计要发生的动作。由“should/would+be+动词现在分词”构成。如: I thought you would be sleeping. 3. 过去将来完成时(The past future perfect tense). 过去将来完成时主要表示从过去某时看将来某时会业已完成的动作。由“should/would+ have +动词过去分词”构成。如: I thought she would have told you about it. 4. 过去将来完成进行时(The past future perfect continuous tense). 过去将来完成进行时表示从过去某时看至未来某时以前会一直在进行的动作。由“should/would+ have been +动词现在分词”构成。如: He told me that by the end of the year he would have been living there for thirty years. 必须强调的是,过去将来时、过去将来完成时和过去将来完成进行时中should/would的用法与在一般过去将来时的用法是相似的,即主语是第一人称时用should;其他人称的情况下用would。
dreamydream
1. 一般现在时:do 2. 现在进行时:be doing 3. 现在完成时:have done 4. 现在完成进行时:have been doing 5. 一般过去时:done 6. 过去完成时:had done 7. 过去将来时:would/ should do 8. 过去进行时:was/ were doing 9. 一般将来时:shall/will do 10. 将来进行时:will be doing 11. 将来完成时:will have done 12.将来完成进行时:shall have been doing ,will have been doing 13.过去完成进行时:had been doing 14.过去将来进行时:should be doing , would be doing 15.过去将来完成时:should have done , would have done 16.过去将来完成进行时:should have been doing , would have been doing1. Now when the general: do 2. Now when they carried out: be doing 3. Now completed: have done 4. Present Perfect: have been doing 5. In the past when General: done 6. Completed in the past: had done 7. In the past when the future: would / should do 8. In the past tense: was / were doing 9. In the future when General: shall / will do 10. When the future: will be doing 11. Completed in the future: will have done 12. Perfect in the future: shall have been doing, will have been doing 13. In the past Perfect: had been doing 14. In the past when the future: should be doing, would be doing 15. In the past, when completed in the future: should have done, would have done 16. Completed in the past when the future: should have been doing, would have been doing
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