情态动词后面必须要加原形吗情态动词有哪些
情态动词有must,can(could),may(might),ought toneed,dare等。
情态动词(modal verb)是一个语法学术语。抽象地说，是用来表达情态的动词；具体地说，是用来表达可能、意愿、必要的动词。事实上在具体语言中的界定往往还要符合一定的句法形式或形态标准。在现代汉语语法中，情态动词又被称为能愿动词或助动词；而在英语中情态动词则是助动词中的一类。
情态动词有四类：
①只做情态动词：must,can(could),may(might),ought to
②可做情态动词又可做实义动词：need,dare
③可做情态动词又可做助动词：shall(should),will(would)
④具有情态动词特征：have(had,has) to,used to
情态动词的语法特征
1） 情态动词不能表示正在发生或已经发生的事情，只表示期待或估计某事的发生。
2） 情态动词 除ought 和have 外，后面只能接不带to 的不定式。
3） 情态动词没有人称，数的变化，即情态动词第三人称单数不加-s。
4） 情态动词没有非谓语形式，即没有不定式，分词，等形式。
will和would
注意：
1）would like； Would like to do = want to 想要，为固定搭配。
Would you like to go with me?
2）Will you…? Would you like…? 表示肯定含义的请求劝说时，疑问句中一般用some, 而不是any。
Would you like some cake?
3）否定结构中用will，一般不用would, won't you是一种委婉语气。
Won't you sit down?
助动词shall和will的用法
shall和will作为助动词可以与动词原形一起构成一般将来时，
例如：
I shall study harder at English. 我将更加努力地学习英语。
He will go to Shanghai. 他要去上海。
情态动词和助动词有啥区别？或不同？
要想搞清楚二者的区别，首先要明确助动词和情态动词的定义及种类。
1．助动词的定义
助动词本身没有实际意义，它不能独立构成谓语，它帮助动词构成谓语，表示时态、语态或构成否定及疑问形式。常见的助动词有：be，have，do， will等。
2．助动词的分类
（1）be类助动词：be，am，is，are，was，were，been，being。这类助动词与现在分词构成进行时态，与过去分词构成被动语态。例如：
They were watching TV when we got there．（构成过去进行时）
当我们到那儿时他们正在看电视。
We are doing our lessons now．(构成现在进行时) 我们正在做功课。
The project was finished last month．(构成被动语态) 工程上个月已完工了。
The trees are being planted now．(构成被动语态) 人们正在栽树。
（2）have类助动词：have，has，had，having。这类助动词与过去分词构成被动语态。例如：
My uncle has come back home．（构成现在完成时）我叔叔已到家了。
They haven't finished their match yet．（构成现在完成时）他们还没有结束比赛。
Before we went home，we had had a little rest.（构成过去完成时）
在回家之前我们休息了一会。
Having done the work，we had a bath．（构成分词的完成式）干完活后，我们洗了个澡。
（3）will类助动词：will，would，shall，should。这类助动词与行为动词原形连用构成将来时态。例如：
She will invite her good friends to her new house．（构成一般将来时）
她将邀请她的好朋友去她的新房子里。
He said that he would go shopping tomorrow if possible．（构成过去将来时）
他说如果可能的话他明天将去购物。
（4）do类助动词：do，does，did。这类助动词与其他行为动词一起构成否定句和疑问句。例如：
Do you enjoy living in China? (构成一般疑问句) 你喜欢住在中国吗?
Does your sister like playing computer games?(构成一般疑问句)
你的姐姐喜欢打电子游戏吗?
He didn't wacth TV last night．(构成否定句)他昨天晚上没有看电视。
I don't get up early in the morning.(构成否定句)我早上起床不早。
3．情态动词的定义
情态动词本身有词义，但不能独立构成谓语，用来表明特定的感情和态度。情态动词没有人称和数的变化，其后必须跟动词原形。
情态动词用法要点：
动词原形跟后面，说话语气较委婉。
can表“能力”,may “许可”，must “责任”或“义务”，否定回答needn't 换；“需要”need, dare“敢”，should“应该”，would“愿”， have to “被迫”表客观。
特殊说明：
情态动词包括：can (could)、may (might)、 must(must)、need、dare、will(would)、shall(should)等。
②对must构成的一般疑问句作否定回答只能用needn't.
③dare和need一般在疑问句或否定句中才算情态动词，而肯定句中作行为动词。
明确以上两点内容，就可以有效的区分两类动词。
It Must Be Love 歌词
歌曲名:It Must Be Love歌手:Doris Daze专辑:It's All GoodIt Must Be LoveEnrique IglesiasAlbumDownload to Donate for HaitiThere is something I gotta tell youIt goes like thisDo you know you control every single breath I takeYou can see through my soul, I feel it in the love we makeAnd I try to find a place where I can hide yeahBut every time I try to fight the feeling it takes over meIt must be love baby coz it's killing me looking in your eyesIt must be love coz every time you walk away I just fall apartAnd I don't know what it is, but I feel I'm in too deepNo, I don't know what it is, it must be loveYeah, it must be loveWhen we talk you can read every word inside my headLike you know what I need, and I can't imagine anywhereI'd wanna be then right here with you baby, next to meWhy can't you see I try to fight the feeling, but I do believeIt must be love baby coz it's killing me looking in your eyesIt must be love coz every time you walk away I just fall apartAnd I don't know what it is, but I feel I’m in too deepNo, I don't know what it is, it must be loveIt must be loveIt must be loveIt must be loveI...Try to find a place where I can hideBut everytime...I try to fight the feeling it takes over meIt must be love baby coz it's killing me looking in your eyesIt must be love coz every time you walk away I just fall apartAnd I don't know what it is, but I feel I’m in too deepNo, I don't know what it is, it must be loveIt must be loveIt must be loveEndDaMaHua Love!http://music.baidu.com/song/15078056
It must be him 歌词
歌曲名:It must be him歌手:Vikki Carr专辑:Absolute Golden OldiesIt Must Be Him-Vikki CarrI tell myself what's done is doneI tell myself don't be a foolPlay the field have a lot of funIt's easy when you play it coolI tell myself don't be a chumpWho cares, let him stay awayThat's when the phone rings and I jumpAnd as I grab the phone I prayLet it please be him, oh dear GodIt must be him, it must be himOr I shall dieOr I shall dieOh hello, hello my dear GodIt must be him but it's not himAnd then I dieThat's when I dieAfter a while, I'm myself againI take the pieces off the floorPut my heart on the shelf againYou'll never hurt me anymoreI'm not a puppet on a stringI'll find somebody else somedayThat's when the phone rings, and once againI start to prayLet it please be him, oh dear GodIt must be him , it must be himOr I shall die,Or I shall dieOh hello, hello my dear GodIt must be him but it's not himAnd then I dieThat's when I dieLet it please be him, oh dear GodIt must be him , it must be himOr I shall die,http://music.baidu.com/song/59924166
It must be fun to后接什么
1.he
could
be
running
for
exercise.
为了训练他可以（长期进行）跑步。
could是情态动词,这里不用can而用could是一种委婉说法，后面加be+ving.的原因是要表述长期坚持，持续进行run这个动作。如果不这样表述，也可以说he
could
run
for
exercise
2.he
might
be
running
to
catch
a
bus.
为了赶公共汽车他可能要跑.might情态动词,后面加动词be加ving是在突出running这个动作，也可以表述为he
might
run
to
catch
a
bus
3.it
must
be
teenagers
having
fun.
must
情态动词，must
be表示推测
这句话的意思是玩得愉快的可能是年轻人们。
我是初中英语吧的吧主
如果还是不懂，欢迎来初中英语吧询问，
主语从句中it做形式主语的常见句型有哪些？
常见句型有：It + be + 名词词组 + 主语从句，这类名词有：a fact, a pity, a shame, an honour，a question.It + be + 过去分词+ 主语从句，这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等，It + be + 形容词+主语从句It + 不及物动词(seem, appear, happen等) + 主语从句, 这类不及物动词有：appear, happen, seem等，It + be + 形容词+ for sb.）+ 动词不定式 这类句型常用形容词easy, difficult, hard, important, possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，It + be + 形容词 + of sb. + 动词不定式，这类形容词常是表示心理品质,性格特征的形容词，如：kind, nice stupid, clever, foolish, polite, impolite, silly, selfish, considerate等。It + be +名词词组 + 动词不定式It + be + 名词或形容词+ 动名词It + take ( sb. )+ 时间（金钱）+ 动词不定式用的比较少的 It + take ( sb. )+ 时间（金钱）+ 动词不定式举几个例子比如：It took the workers almost three years to finish building the dam.It will take a whole day to get to the top of the mountain on foot.
“it”引导主语从句和“it”做形式主语还有强调句型的区别分别是什么？
“it”引导主语从句和“it”做形式主语还有强调句型的区别：it引导的主语从句，形式主语就是it，真正的主语在句子的后面，通常是to do的不定式短语。而强调句的结构 it is/was+被强调部分+that/who+句子其余部分，结构词it is/was和that/who都是没有实际意思的，只是构成句子结构的词而已。这个强调句只能强调名词和代词，也就是主语和宾语，不能强调其他句子成分。主语从句：It is kind of you to help me with my housework.强调句：It is you who help me with my housework.主语从句中it做形式主语的常见句型：It + be + 形容词+主语从句，如：It is uncertain whether he can come to Jenny’s birthday party or not.It + be + 名词词组 + 主语从句，这类名词有：a fact, a pity, a shame, an honour，a question等，如：It’s a pity that you missed the exciting football match.It remains a question whether he will come or not.It + be + 过去分词+ 主语从句，这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等，如：It is reported that 16 people were killed in the earthquake.
must 和must be什么区别是什么？
他们两个语气都一样,不过后面跟的成分不一样.
must后面只能跟动词,在这里must跟should,will等一样,都是一个助动词.
must be,你可以这样理解,be是系动词的总称,可以看成一个动词,意思是“是”,在这里跟在must后面.
must be后面跟名词或形容词,或者宾语从句,并没有语气强弱的意思.
must be表推测.
举例：
must：We must go now.
我们现在必须要走了.
must be：
She must be the mother of that girl.
她一定是那个女孩的母亲
望采纳 谢谢 作业达人团帮您解答
It Must Be？ 歌词
歌曲名:It Must Be？歌手:刘若英专辑:听说？It Must Be？手机带错拿成遥控器 没充电的相机想绑马尾没有橡皮筋我迷迷糊糊刚睡醒为了准时 遇见你的出现 像是简讯随时提醒one two Falling in love就算言不及义没有话题 错过一部约会电影three four 不用太在意It must be good (要让你明白)我的爱情 是待你流览网站Oh come on show me12345…12345…my baby和我恋爱带我去101看夜景 教我长北极星一路上塞车也没关系多放几首更精彩的秘密one two Falling in love就算没有逻辑不合格规律 也能下载你的心情three four 不用太神秘it must be good (拥有你的爱)我的爱情 是等你上线状态Oh come on show me12345…12345…my baby 和我恋爱it must be goodhttp://music.baidu.com/song/2077767
it must be imagination 歌词
歌曲名:it must be imagination歌手:Kenny Loggins专辑:high adventureWhen the feeling isn't rightThey say you see it in a lovers eyeBut I'm wide awake tonight'N I'm looking for a reason whyIt doesn't showStill somehow I knowTell me that it just ain't soSay I made the whole thing upIt must be imaginationWhy can't I forget itGod, you'd think I'd know betterIt must be imaginationGone completely out of my mindIt must be imaginationTearin' me apart'N breakin' my heartYou can say what is realYou can tell me if I'm in a dream'Cause I know what I feelBut I don't know what to believeTurn on the night lightEven if it takes us all nightI gotta be sure by daylightIf I've made this whole thing upIt must be imaginationTell me if I'm right'Cause it's changing my lifeIt must be imaginationEverybody knowsThere ain't no way to fight itIt must be imaginationBreakin' my heart'N tearing me apartIf I'm only dreamin'Then I'm cryin' in my sleepYou should be shakin' meWhy ain't you wakin' me up?It must be imaginationGod I must be losin' my mindIt must be imaginationDoes anybody knowIs there anyway to fight it?It must be imaginationAll in my mind, all in my mindIt must be imaginationIf you wanna go, I just got to knowIt must be imaginationOooh tell me what's the problemWhy you wanna go on breakin' my heart?http://music.baidu.com/song/14148997
must be 几个用法的区别
There must be 意思是 那里一定 注重的是位置与地方 在句子中称当主语 意为那里一定有什么
It must be 意为 这东西一定是什么 竟然用了it 那应该是上文提到过得东西 所以用it must be
this/that must be 意为 这个或那个一定是什么 表特指 具体的某一个东西
这道题目应该是填 there 表示位置 那CPU里一定有什么问题
望采纳~
must be和must有什么区别吗
must和must be有区别，区别是翻译时语态不同表示不同意思。1.必须,you must go to school.你必须去上学.否定句 you needn"t go to school.2.一定是,you must be a teacher 你一定是名教师 否定句 you can't be a teacher 你一定不是教师总结：一个意思表示必须,一个意思表示肯定推测.must 是情态动词之一。情态动词的作用是表示主观看法，与表示客观叙述的陈述句相区别。比如，John is the best one of them 和John must be the best one of them .这两句有什么区别呢？John is the best one of them .是表示客观 事实的陈述句,意思是：John 是他们中最好的。（陈述事实）而John must be the best one of them .是表示说话人主观的看法，意思是：我认为John 是他们中最好的。（表示说话人的主观看法）换句话说就是说话人的看法不一定是事实。所以英语中引进情态动词的目的是表示说话人的主观意见。2.了解了情态动词的用途后，再来看看它们的表现形式。情态动词在句中的表现形式是：modal + do (modal-- 情态动词,do--一般动词原形，包括系动词）以 must 为例子： must do ,如果是系动词就用它们的原形be: must be3.must 的意思主要是表示主观猜测，如前面的John must be the best one of them .还有就是表示义务，责任，如 you must finish it by 5.你必须在5点以前干完。参考资料作业帮：https://www.zybang.com/question/8f06747873f37190f61a5b2dfcfeb069.html