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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...

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.

did是do的过去式 were是are的过去式 was是is的过去式

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...

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...

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...

had 是have的过去式 就用在一般过去式的句子中eg: I had a beautiful watch.我过去有一个漂亮的手表 had 是有的意思was were 都是be 动词 意思是“是”was 是be动词is的过去式 be 动词一般都构成系表结构 后面可以加形容词或者副词 还可以加动词in...

“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...

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