当完成时态后有for或since时,是用现在完成时,还是用现在完成进行时? 比如例题：

可以.如:I haven't seen him for two years.我有两天没看到他了.这里see是终止性动词.
I haven't bought anything from that supermarket for a month.我有一个月没有在那家超市买过东西.

固定句型：
This is the first /second time that 接现在完成时
This was the first /second time that 接 过去完成时

其实这个是特殊用法,就是ing形式迁移,因为have不同于can could等动词,它有ing形式!

主语+has/have+do过去+其他

The film has been on for 10 miniutes.

watched

last有完成时,
所以用has lasted ,意思是:大雨已经持续两个小时了.!
PS:瞬间性动词才不能和一段时间连用
(如,buy,come,leave ,die等),
但last不是瞬间性动词,所以可以和一段时间连用!
糊糊~这么说,你能明白吗?!

1 感官动词能用于完成时态:I have just seen a new film
2 She said that she had known him for five years.
3 They have never tasted a Japanese food.
2 感官动词有的是延续动词,如：know,
有的是瞬间动词,如：see,smell,hear.

since 意思是 自从……以来 因此常常和 完成时 连用
但是只要意思顺畅 就可以选 不用怀疑自己

Seen from top,the mountain is so beautiful.
从山顶看,这座山是如此美丽.
（山被从山顶看 ,所以是被动,也作状语）

为你解答。
4、got married
5、has been away from
has been, left

1.完成时比较好吧.
2.你好像说的是那个叫“这个杀手不太冷”的电影吧,不过句子全错了,改成：
there are some people in our lives,maybe not so excellent or special,but will never be forgetten by us,just as the killer will not be forgotten by the little girl.

不用那么想的复杂,其实像第一个例子,用哪种时态都是对的,第一种是说那个时候没有说过,第二种是说当时没有做那个动作但是不用说I didn't say like that,而直接说I didn't say that就成.而回答的时态一般都是根据问话的时态而来的,而如果是你自己写那就要看你自己要表达的意思了
但是第二种就是应该用I don't speak Chinese了,因为这个是说明你使用语言的状态,而不是说你没说汉语,；而说你听不懂可以说I can't get u if u speak Chinese.
至于吃没吃苹果,不出意外直接用一般过去时就可以
而最后那个可以理解成两个意思一是我的状态,没吃苹果,二是苹果的状态,没被我吃,很可能还在.
这些都不太具体,再发得具体些,给你解释

说个例子：我已经搬完家了.ich habe schon eingezogen.可分动词搬家.einziehen.一般位于句末.其实这些我觉得别死记硬背,平时多读多说就会产生语感,到时候就会自然知道这个词放哪里,当放在错的位置自己读起来就有感觉

since +时间点、
since +时间段 +ago、
since +从句（一般过去式）、
for +时间段、

How long 是对英语中,表示一段时间的状语提问 ,现在完成时常与表一段时间的状语连用.when 是对时间点提问.如：How long has he been here How long did you stay here When did you come here When 不能与现在完成时连用.

1、since +过去一个时间点 (如具体的年、月、日期、钟点、1980,last month,half past six).
I have been here since 1989.
2、since +一段时间+ ago
I have been here since five months ago.
3、since +从句
Great changes have taken place since you left.（跟一般过去时）
Considerable time has elapsed since we have been here.（现在完成时）
4、It is +一段时间+ since从句
It is two years since I became a postgraduate student.（跟一般过去时）

动词不定式完成时：表示的动作发生在谓语动词表示的动作之前. 　to +have +过去分词
　I'm sorry to have given you so much trouble. 　
　He seems to have caught a cold.

这些天来,玛丽一直控制饮食.
相当于一直以来.所以用完成时态

假设现在是1点,那么用has not been 就表示从1点以前一直到1点都不舒服,只是现在好点了；如果用wasn't就表示1点以前的某个时刻或某段时间是不舒服的,并没有强调现在也是不舒服的,可能现在好了也可能没有好……

happen 无被动语态 有完成时态和进行时态

举例子你就懂了

It has happened,nobod can change it.
What is happening?

而被动语态是不可以的~
不能说什么事情“被发生”
所以happen 永远不用被动

不懂请追问
满意请采纳O(∩_∩)O~

often
adv.
多次； 时常
How often do you go there?
你多久去那里一次?
How often you have been abroad?No often,only twice.
你出国几次了?不多,只出去过两次.
经常；通常
Children often dislike homework.
孩子们通常都不喜欢家庭作业.
He often does this.'
它经常干这种事.

现在完成时有两种基本用法：
1.现在完成时表示的是过去发生的动作,对现在造成的影响和结果.
如：I have seen the film.这句话的意思是“看”发生在过去,主要强调看的结果,知道了这部电影的内容.
2.现在完成时还表示一个动作从过去某一时间开始一直持续到现在,这种用法往往与表示一段的时间状语连用.
如：I have worked in the school since I graduated from uiversity.
"工作”从一毕业就开始一直到现在.
另外,现在完成时的结构是：助动词have/has+done构成

He has studied English for three years.改为 Has he studied English for three years?(一般疑问句） 只要改变语序,其他人称也一样

有几个概念,要梳理一下
首先是having done 的概念
这是主动,被动式是having been done
变成非谓语时,该主动,就用主动,该被动,就被动
having done 这个叫分词完成式,他哪里来的,我来进行推导
比如,新概念2册一个句子
我在河边度过了一整个上午之后,拎着空包回家了
after having spent the whole morning,i went home with an empty bag
这个句子,谓语动词是went,没有连词,那么,spent 要处理成非谓语
为什么是having spent
推导如下：
要是两个动作同时,就是,while spending the whole morning,i .
可是,这里是after,表过去完成时概念,还原成状语从句是：after Ihad spent the whole morning...
然后,吧after i had spent 变成非谓语,去掉主语i,又要表达过去完成,就是having done 了,having spent
然后,是主动,还是被动,还是看spent 的逻辑主语,还是看逻辑主语和非谓语动词的关系,主动还是被动
表主动的,有是将来的,用to do ,主动的,表同时的,现在分词,主动的,表动作有先后的,having done
这些都有各自的被动态,to do ----to be done,等等
第二个例子,是另外一个概念,是不定时做定语,并且主动表被动的情况
something to eat 这是不定式做定语
不定式做定语,考点是要知道这个动词,eat 是及物还是不及物,及物动词,没事,不及物动词,要记得把介词加上去.
第二,有不定式主动表被动的情况,又是另外的情况了,同样可以进行推导,语法书上的解释,什么什么什么时候用不定式主动表被动,都倾向于去死记硬背,其实也可以进行推导,那是另外一个话题了

现在完成时的构成
have∕has + P.P.
现在完成时的用法
⑴ 与just连用,表示刚刚完成的动作或状态（just放在have∕has与P.P.之间）.
I have just had lunch.
He has just finished his homework.
⑵ 表示动作发生在过去,持续到现在,有可能延续到将来,常与since“自从…”（后面跟一点时间）for（后面跟一段时间）连用.
I have learned English since 2000.
He has lived there for 10 years.
⑶ 表示过去的动作对现在的影响.
He has lost his key.
⑷ 与最高级连用,表示“到目前为止最…”
You’re the cleverest girl that I’ve seen.
⑸ 与It∕This the first time that…连用, 表示“第一次……”
It∕This is the first time that he has learned English.
⑹ have∕has been to…曾经去过…（已经回来了）
have∕has gone to…去了…（还没回来）
I have been to Shanghai.
Tom has gone to Shanghai.

现在完成进行时have been doing,注意里面包含了doing,所以它是延续的,have been中,been是be的done形式,所以表示过去,叠加起来就是过去发生的事情一直延续到现在.而现在完成时have done,就只是表示过去做过的事情对现...

last有完成时,
所以用has lasted ,意思是:大雨已经持续两个小时了.!
PS:瞬间性动词才不能和一段时间连用
(如,buy,come,leave ,die等),
但last不是瞬间性动词,所以可以和一段时间连用!
糊糊~这么说,你能明白吗?!

变成：the year before

不是的.
首先及物动词的完成时都是用haben做助动词的.
anfangen和beginnen在德语中,似乎以不及物为多.但完成时只用haben.
针对einziehen这个词,你的说法是正确的.其不及物用法完成时用sein.

分there has been,there have been,
there be是倒装,be与其后的真正主语保持一致；
看be 之后的名词是单数还是复数,单数用has,复数用have
there have been many people missing.很多人都已经不见了.
there has been much money missing.很多钱都不见了.
there be和动词的现在完成时的区别
1There has been a picture on the wall for a long time
2 The picture has been on the wall for a long time 他们的强调有所不同
句子1强调的是图画,指的是：很长时间来在墙壁上已经有这幅画了；
句子2强调的是时间,指的是：图画（在墙壁上）已经很长时间了.
去买本语法书啊,方便

持续性动词当然可以有进行时了! 如：read,wait , write, etc.
持续性动词和暂短性动词的用法区别主要是完成时,暂短性动词不能和表示一段时间的状语连用,由for ,since 引导.如：1） He has read the book for two hours. (read 是持续性动词,可以和for 连用） 2） He has bought the book for two hours .(不对,buy 是暂短性动词,不能和for 连用,这句话要改成 He has had the book for two hours.
希望能够帮到你.

BEEN IN
== a member of

不定式主要就是做目的状语的,也可是结果状语

I have been to beijing

join-joined-joined
have joined

正好,刚刚的意思,如
I have just finished my homework.
我刚刚完成了作业.
希望能帮到你,祝更上一层楼O(∩_∩)O
有不会的欢迎再继续问我(*^__^*)

一般情况下是和普通反意疑问句一样,在情态动词上改,比如.
You can play piano, can't you?
He can't go to school today, can he?
但注意下列情况:
1 当陈述部分带有情态动词ought to时,反意疑问部分在英式英语中用ought to 形式,在美式英语中用should形式.例如：
You ought to see the new picture,shouldn't you?
Teachers ought to be honoured,oughtn't they?
2 当陈述部分带有情态动词used to时,反意疑问部分可以用used to形式,也可以用did形式.例如：
She used to live abroad,usedn't she?
There used to be a newsstand in the corner of the street,didn't there?
3 当陈述部分带有情态动词must时,反意疑问部分需视must的含义而定.
a.当must表示“命令或强制”时,反意疑问部分用mustn't.例如：
You must do it by yourself,mustn't you?
b.当must表示“有必要”时,反意疑问句用needn't,例如：
You must see him tonight,meedn't you?
c.当must表示“一定”或“想必”等推测意义时,反意疑问部分不用mustn't,而根据must后的动词形式而定.例如：
He must be crazy to do so,isn't he?
She must have been there for a long time,hasn't she?
They must have stayed at home last might,didn't they?
4 当陈述部分带有need时,反意疑问部分需视need的含义而定.如果need用作情态动词,则反意疑问部分用need形式；如果need用作实义动词,表示“需要”,则反意疑问部分用do形式.例如：
You needn't go there,need you?
She needs to fo there,doesn't she?
Plants need sun to grow,don't they?

有时候already也和一般过去连用,甚至还有一般现在呢,she is 80 already.不要纠结于一个时间副词,他不能决定你用什么时态,只不过为你的语义表达服务而已
occasion在剧中做时间状语就用where=on which的时候

这里的left是动词leave 的过去分词.其实leave 的意思非常丰富,仅仅表示“离开”它就可以既是瞬间动词（动身,出发（从某个方位）经过）,也可以不是瞬间动词（离开.离去,脱离,舍去）,在这里的leave 可以相当于be away from .所以学习英语要仔细认真得学习它,你才能恰当得使用它,
你能够仔细观察,有疑问就提出来求助,这也是非常值得你继续保持的学习态度.加油吧!

现在完成时和一般过去时的区别
1.现在完成时和一般过去时都表示在过去完成的动作,但现在完成时强调这一动作与现在的关系,如对现在产生的结果、影响等,而一般过去时则表示动作发生在过去,一般不表示和现在的关系.试比较：
① Who has opened the door?谁把门开了?（现在门还开着）
Who opened the door?谁开的门?(指过去,与现在无关.现在门是关着还是开着,没有说明.)
② — Have you had your lunch?你吃过午饭没有?（意即你现在不饿吗?）
— Yes,I have.吃了.（意即我现在饱了,不要再吃了.）
— When did you have it?你什么时候吃的?（说话人感兴趣的是“吃”这一动作发生在什么时候.）
2.一般过去时常与具体的时间状语连用,而现在完成时通常与模糊的时间状语连用,或无时间状语.
一般过去时的时间状语：
yesterday,once,last week,...ago,in
1980,in October,just now等具体的时间状语.
现在完成时的时间状语：
for,since,so far,ever,never,just,yet,
till/ until,up to now,in past/last years,always等不确定的时间状语.
共同的时间状语：
this morning,tonight,this April,now,ever,before,already,recently,lately等.
3.现在完成时表示持续到现在的动作或状态,动词一般是延续性的,如 live,teach,learn,work,study,know等.
过去时常用的非延续性动词有come,go,leave,start,die,finish,become,get married等.eg.
① I saw this film yesterday.（强调看的动作发生过了.）
I have seen this film.(强调对现在的影响,电影的内容已经知道了.)
② He has been in the League for three years.(在团内的状态可延续)
He has been a League member for three years.(是团员的状态可持续)
He joined the League three years ago.(三年前入团,joined为短暂行为.)
句子中如有一般过去时的时间状语（如yesterday,last week,in 1960）时,不能使用现在完成时,要用过去时.
(错) Tom has written a letter to his parents last night.
(对) Tom wrote a letter to his parents last night.

各10句有点多啊 ,我给你一些,你可以自己去变变单词 ,就又有一句了 .我现在初三毕业了 ,也忘了具体初二学什么 ,大概吧 .
现在完成时 ：A lot of beautiful flowers and grass have gone .
I have finished my homework .
The film has been on for 20 minutes .
被动 ：The flowers are watered by me everyday .
The man was saved by the doctor .
The letter was sedt to TOM .
状从 ：If it doesn't rain ,we will go for a picnic .
If you get up late ,you will not catch the bus .
If you can do more sports ,you will be healthier .
都是自己想的 ,所以尽力了,.

pulled

注意关键词,比如just now过去式,was doing sth过去进行时,doing现在进行时等等

irection to pass through a thicker atmosphere. However, no matter detector what direction, the extra noise are the same, so it must be from the atmosphere outside and during the day and night and throughout the year, even thoug

不能.
没看出其他毛病.