haven+t+they

@封常1443:everyone has got a chance to give a speech,为什么是haven't they而不是didn't he? -
长严17677738054…… 因为前面有助动词has ,故疑问部分可用hasn't he /she 或 haven't they 如果have/has 作实义动词时,疑问部分要用don't /doesn't +主语, 或didn't +主语(一般过去时) 如 He often has breakfast at home , doesn't he ?They have 4 lessons in the ...

@封常1443:英语: 动词have(有)是vt啊.不是aux. 也可加not缩写成haven' -
长严17677738054…… have既可以作助动词,也可以作实意动词.当实意动词have (有)+not时,可以缩写成haven't .如:They have not / haven't any money. 他们没有钱.He has not / hasn't any time. 他没有时间.We had not / hadn't any visitors here yesterday.昨天我们这里没有游客.但是,若实意动词have表示其他意义时,则不行.如:They don't have me speak. 他们不让我发言的. They don't have breakfast every day. 他们每天不吃早饭.

@封常1443:什么时候用Have什么时候用Has呀.例如She He My They It we -
长严17677738054…… have用于第一人称(I),第二人称(you)或者多人(they)等,has仅用于第三人称单数(he,she,或者Jack之类的单数人名) 望采纳

@封常1443:当人称代词是he、she和they的时候,haven't和have分别该怎么改?谢谢! -
长严17677738054…… he,she属于第三人称单数,动词要加s,he,she+ hasn,t(has) they+haven,t(have)

@封常1443:I don't 后面用 have 还是has -
长严17677738054…… 第三人称单数用has 动词have作为"有"使用时,表示"某人(物)有……"用于第一、二人称单数I、you和复数主语,其单数第三人称形式为has,用于第三人称单数he、she、it和单数主语. 肯定句:主语+have / has+宾语.例如: 1. I have an...

@封常1443:2)They must have arrived by now,haven't they?为什么是haven't they? -
长严17677738054…… 情态动词+动词完成时,即情态动词+have+done.表示对过去的行为或动作进行推测,评论或者判断.1.must have done.表示对过去某事的肯定猜测,其否定或疑问形式都用can/could来表示.例如:since the road is wet,it must have rained last night...

@封常1443:英语语法问题:haven't , wasn't , didn't等这些过去时、完成时的否定后加动词什么时态?是都用原型吗?过去 -
长严17677738054…… 一般过去式的be动词和助动词do/does的过去式为was/were 和did be动词后接名词或形容词,因此在过去时只需将be动词改成was/were即可,没有后面在接动词原形一说.在被动语态的情况下:be+动词过去分词,改为过去式就是was/were+动词过去分词 助动词do/does,过去式为did,其后才接动词原形 完成时态结构为:have/has+动词过去分词,否定式为haven't/hasn't+动词过去分词 过去进行时:was/were+动词ing,否定式为wasn't/weren't+动词

@封常1443:现在进行时时间状语 -
长严17677738054…… 一、结构形式 现在完成进行时是由“助动词have(has) + been+动词的现在分词”构成. 二、基本用法 1. 表示从过去某时开始一直延续到说话时还在进行,或可能还要继续下去的动作.它通常和“for+段...

@封常1443:我看到有一题的一般疑问句用haven't -
长严17677738054…… 那是现在完成时态 比如说They have had lunch at school since they were young. haven't they?是这个吧,这是现在完成时,have助动词,而不是实义动词

@封常1443:反义疑问句详细讲解? -
长严17677738054…… 反义疑问句(The Disjunctive Question) 即附加疑问句.它表示提问人的看法,没有把握,需要对方证实. 反义疑问句由两部分组成:前一部分是一个陈述句,后一部分是一个简短的疑问句,两部分的人称时态应保持一致. 1.陈述部分肯定式+...

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