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hAD和wAs的用法区别

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...

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...

be 动词后跟形容词或副词或名词 如 He was a student last year. We were very happy last weekend.

is 用于一般现在时,主语是第三人称单数时使用。It is ten years since we came here . has been 用于现在完成时中。It has been ten years since we came here . had been 用于过去完成时。It had been ten years since we came here . was用于...

“was done”是一般过去时的被动语态was/were done之一。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。 “had been done”,也是英语两大语态中的被动语态,但它的时态为过去完成时。过去完成时表示...

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 ...

看时态,现在完成时就用has/have been,一个动作表示过去的过去用had been.它们后面的动词可用doing,表示完成进行时;也可用done,表示完成时被动,你根据情况而定。望采纳

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