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hAD和wAs的用法区别

be do是被动语态,星期天是过去时,那么就是was lost have do是第1人称写法,星期是过去时,那么就要用I had lost my textbook 你这个句子是我的书被我弄丢了,所以要用be do 被动语态,即was lost

was用作助动词的时候,后面接动词的相应形式,如: was doing,was done. was被用作系动词时,后面接名词或形容词,如: He was a student.She is beautiful. Have用作助动词的时候,后面接过去分词done表示完成时态. Have用作实义动词,可以表示拥有的...

改为was是过去进行时由Be动词中的(is,am)构成的语句要变成过去式时就需要用到(was),也就是说was是is和am的过去式.had是have的过去式. was和had的用法差别就是指Be动词和Have的用法差别. be动词后一般加形容词,或者动词不定式. have主要是与实...

这里一共有两组不同的词 have has had 和 is are was were have是‘有的’意思,has是单数人称形式,had是过去式 I have a nice bag He has a nice bag I had a surgery are 是‘是’的意思 is 是单数人称称形式,was是单数人称的过去式,were是复数...

was doing是过去进行时,表示过去正在发生.例如:She was washing when her son came in.(她儿子进来时她正在洗衣服.) had been doing是过去完成进行时,基本相当于过去完成时,但可以强调动作延续.例如:They had been playing chess for the wh...

恩 我先来说一下例句 一。His trousers was been worn out. (这里的 过去分词是做表语,表明一种状态) was been done,而这里的逻辑主语又是他的裤子,所以用被动,是被他穿破的 二。 The bicycle is been riding by my brother now. (这里的 ...

was done was done是一般过去时的被动语态was/were done之一。英语分为主要的八大时态,两大语态。其中,一般过去时即谓语动词为过去式,表示一个过去发生的动作,而被动语态是表示主语被怎样,其中主语是动作的被执行者即动作承受着。二者匹配...

had为have的过去式,也可作为助动词 had done. was/were 为be动词的过去式的单复数形式,him为宾格,常用于介词或动词后,his 形容词/名词性物主代词,“他的”,she主格,常用作主语,her形容词性物主代词,常作定语,“她的”。

had not been 指的是过去完成时。强调过去的过去,强调从过去的某段时间里之前做过的事情。。一般它做的事指代 was 之前做的事 was not 指一般过去时,单纯指代过去做的事情,,通常跟有表示过去的词语last year 等

have been talking:在某不段时间内一直在谈论 was talking:在过去的某一时刻在谈论 had talked:强调“谈论”这个动作在表示过去的一个动作之前已经发生。

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