英语的句子中,单词在什么情况下进行什么样的变形?(如:现在进行时.过去时.将来时等)SOS!

英语的句子中,单词在什么情况下进行什么样的变形?(如:现在进行时.过去时.将来时等)SOS!
英语的句子中,单词在什么情况下进行什么样的变形?(如:现在进行时.过去时.将来时等)SOS!

英语的句子中,单词在什么情况下进行什么样的变形?(如:现在进行时.过去时.将来时等)SOS!
.一般过去时的定义
一般过去时表示过去某一时候或某一段时间所发生了的事情或存在的状态.常与过去时间yesterday,this morning,just now,a moment ago,in May,last night / year / week,once upon a time,the other day,before …,when – clause,in the past连用.如：
What did you do yesterday?昨天你干了什么?
I met Lin Tao this morning.今天上午我会到了林涛.
I was there a moment ago.刚才我在那儿.
2.一般过去时的应用
(1) 表示过去某时所发生的动作或存在的状态.如：
Liu Ying was in America last year.刘英去年在美国.
Jim rang you just now.吉姆刚才给你打了电话.
(2) 表示过去经常或反复发生的动作.常接时间副词often,usually,always,sometimes,every day / week,etc.如：
We often went out for a walk after supper.我们过去常在晚饭后散步.
We usually played together.我们通常一起玩.
3.一般过去时对谓语动词的要求
一般过去时的谓语动词要用动词的过去式.动词过去式的构成分规则变化和不规则变化两种形式,不规则变化通常需要逐个记忆,规则变化则遵循以下原则：
(1) 一般在动词后加-ed.如：play—played,offer—offered,weigh—weighed,destroy— destroyed,sign—signed.
(2) 在以字母e结尾的动词后,只加-d.如：like—liked,provide—provided,hate — hated,date—dated.
(3) 在以“辅音字母+y”结尾的动词后,则改y为i,再加—ed.如：supply—supplied,fly—flied,study— studied.
(4) 在以单短元音的重读闭音节结尾且,末尾只有一个辅音字母的动词后,双写最后一个辅音字母,再加-ed.如：plan—planned,refer—referred,regret—regretted,ban—banned.
4.特别说明
有些动词的过去时,如：expect,hope,intend,plan,wanted 等一般过去时,后接不定式的完成时；或它们的过去完成时接不定式的一般式,都可表示过去未曾实现的意图、打算或希望.如：
I hoped to have been invited to his wedding party.—I had hoped to be invited to his wedding ceremony.我本希望他来邀请我参加他的婚礼.
I intended to have joined their games.—I had intended to join their games.我本打算参加他们的比赛.
过去将来时
1.过去将来时的定义
过去将来时主要用于表示过去某个时候看来即将发生的动作或存在的状态.如：
He said he would come here next Friday.他说他下周星期五来这儿.
I knew that he would help us when we were in trouble.我知道当我们陷入困境时它会帮助我们.
2.过去将来时的结构
(1) would + 动词原形.如：
She told us that she would try her best to catch up with other classmates this term.她告诉我们说她将一切努力在本期赶上其他同学们.
When you asked Li Lei for help,he would never refuse you.过去当你请她帮忙时,他绝不会拒绝.
(2) was / were going to + 动词原形.如：
He told us that he was going to attend the meeting.他告诉我说他要参加那次会议.
He said that I was going to be sent to meet her at the railway station.他说将要拍我去火车站接她
(3) was / were to + 动词原形.如：
The building was to be completed next month.这座建筑改在下个月竣工.
Li Lei was to arrive soon.李蕾很快就要到了.
(4) was / were about to + 动词原形.如：
We were about to leave there when it began to rain heavily and suddenly.就在我们要离开时,天突然下起了大雨.
He was about to have lunch when the bell rang.就在他要吃中饭的时候,门铃响起来了.
(5) was / were +现在分词.如：
He was leaving the next day.他第二天要走了.
We were informed that the leaders were coming to our school soon.我们接到通知说领导们很快要来我们学校.
3.过去将来时的用法
(1) 过去将来时,一般用于主句为过去时的宾语从句中.如：
He said he would stay with us.他说他要与我们呆在一起.
He said he would never go there again.他说他绝不会再去那儿.
(2) 过去将来时,用于虚拟语气中,如：
If I were you,I would not do that.要是我是你的话,我就不会那样做.
If he were here,he would show us how to do it.如果他在这儿,他就会向我们展示该如何做了.
4.拓展
was / were going to + 动词原形；was / were to + 动词原形；was / were about to + 动词原形等结构都可表达当时一种未曾实现的意图或打算.如：
The conference was going to be held the next month.会议下个月开.
We were to have our class at eight.八点我们该上课了.
I was about to tell him about it when Wu Dong got in.就在我要告诉他时,吴东进来了.

表示正在进行的动作 用现在进行时
She's sucking me,now.
表示过去发生的事情用过去式
She sucked me,anyway.
表将来会发生的事情用将来时
She's sucking me!
将来时还要分此事会发生的概率等等 但很麻烦 一般老外都懂的 也可以用going to do sth. 但这个简单...

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表示正在进行的动作 用现在进行时
She's sucking me,now.
表示过去发生的事情用过去式
She sucked me,anyway.
表将来会发生的事情用将来时
She's sucking me!
将来时还要分此事会发生的概率等等 但很麻烦 一般老外都懂的 也可以用going to do sth. 但这个简单

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一般现在时 sb do
现在进行时 sb be doing
过去时 sb did
将来时 sb will do （没有迹象或无法改变的）
或sb be going to do （有迹象或有计划）
或 sb is dong

现在进行时，当你要表示某某正在干某事或者在某个时段正在干某事
如：I'm riding my bike to go to school.(我正骑着自行车去学校)
She was watchting TV when her parents came back home(爸妈回家的时候她正在看电视)
过去时，就是当你所描述的事件是发生在过去。如上句
将来时，就是表示你所...

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现在进行时，当你要表示某某正在干某事或者在某个时段正在干某事
如：I'm riding my bike to go to school.(我正骑着自行车去学校)
She was watchting TV when her parents came back home(爸妈回家的时候她正在看电视)
过去时，就是当你所描述的事件是发生在过去。如上句
将来时，就是表示你所要描述的事情，还没有发生，但是你准备要去做了或者即将发生，
如：I will tell the story to my brother。（我要把这个故事告诉我弟弟听）
I'm going to watch a movie tonight.(我今晚要看一部电影)
这些都是比较简单的东西，能够很快就掌握的，不要太着急，重在理解，试着将自己代入文字所描述的语境，便能够很快熟练的运用了，其实这些时态和中文用法没什么两样的。
现在进行时，我们中文里，不是常常喜欢用“某某正在做什么”来表示吗，也就是英文中的“be doing sth.”将来时嘛，自然就是“某某将要做什么”来替换“be going to do”或者“will do”
这是我自己的理解，希望能够对你有所帮助，也不枉我敲了这么多字。呵呵

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现在进行时 ing形式
过去式 had\have done\been done
将来时 will\would do