精选优质文档-倾情为你奉上被动被动语态的最基本构成是:be + done(动词的过去分词形式)被动语态和时态是分不开的。很多时态都有其被动语态形式。总结如下:1) 一般现在时一般现在时主要由动词原形表示,但第三人称单数后要加词尾-s,其方法与名词单数变复数的方法相同。另外,be和have有特殊的人称形式,be在I后为am;在he,she,it后为is;在we,you,they后为are;have在第三人称单数后为has,在其他人称后仍为have。被动语态:be(am/is/are) + done (by)主动语态:Everyone likes her.被动语态:She is liked by everyone.2) 现在进行时现在进行时由“be(am/is/are) +现在分词”构成,其否定式是在be后加not,疑问式是将be提前。They are building a new school in our village.She is cleaning the classroom.被动语态:be(am/is/are) being doneA