be动词怎么用( 五 ) _动词

../He isn't 。. 13. You're not 。
../You aren't 。【但“am + not”的缩写法只有一个： 14. I'm not. 有人用“ain't”，但这并不是标准英语。
谈过了“be”作主动词的功能，现在看看“be”作助动词时，有些什么用法：【1.】“Be + 现在分词”以组成进行式时态（Continuous Tenses），如： 15. Tony's maid is washing his new car. 16. The children are playing in the field. 17. Samuel was eating when I came in. 18. We have been living here since 1959. 【2.】“Be + 过去分词”以组成被动语态（The Passive Voice），如： 19. Her money in the drawer was stolen. 20. A number of good jobs are taken up byforeigners. 21. David studied in Taiwan but has been trained as a language lecturer in America 助动词助动词在有实义动词或叫行为动词的句子中对其进行否定和疑问的时候用，否定句时在其后加not，疑问句时把助动词提到句首，后面用动词原型即可。一般现在时（do/does）、一般过去时（did），一般将来时（will,would/shall,should），现在完成时（have/has），过去完成时（had）等待。
而be动词就是在系表结构中用，be直接就是“是”的意思，如果和实义动词一起的话就有be+动词-ing（进行时态）be+动词过去分词（被动语）。↗珊。
7.be动词的用法【be动词怎么用】be是一个多功能动词，在初级英语里可见四种用法：功能一，系动词be be为连系动词，中心词义是"是"，句型为"主+系+表"结构。
be的形式常用am, is, are（现在式）；was, were（过去式）；will/can/may/must be（助动词/情态动词+原形）；have/has/had been（助动词+过去分词）等。如： To help animals is helping people.（一般现在时） The twins were very busy yesterday.（一般过去时） It will be sunny tomorrow.（一般将来时） She has been ill for over a week.（现在完成时）功能二，助动词be 助动词be，无词义，辅助主要动词一起在句中作谓语动词。
用法如下： 1. be+doing：构成进行时态，有现在和过去两种进行时态。如： The girls is reading and copying the new words now. Young Tom was always asking questions and trying out new ideas. 2. be+done：构成被动语态（主语是动作的承受者，done必须是及物动词）。
如： Tea is grown in my hometown.（一般现在时的被动语态） This building was built three years ago.（一般过去时的被动语态） Our classroom has been cleaned and tidied already.（现在完成时的被动语态） How could this kind of cakes be made in your home？（含情态动词的被动语态） That is a day never to be forgotten.（动词不定式的被动语态） 3. be+going to do，表示"打算或将要做某事"，be有现在和过去两种形式。如： We are going to plant trees in the park. I didn't know if she was going to come here. 4. be+to do，表示"按计划安排将要做某事" 。
如： The new shop is not to be opened till next Monday. One night an angel came to Mary and told her that she was to have this special boy. 功能三，there be there be句式为：there be+主语部分+状语部分，表示"某处存在某物"，be常用现在时，过去时和将来时等。如： Oh, cool! And there are many things to see. There is even a deer park in Sanya. There are about 80 pyramids in Egypt. Will there be a football match in your school next week？功能四，实义be 可以将be视为实义动词，因为它具有实际的词义，如"成为；做；发生；举行；逗留；到达"等。
如： His daughter wants to be a doctor for animals in her twenties. Kate's birthday party will be at half past six this evening. Jim has been in China for more than two years, but he has not yet been to Yichang. 。
8.be动词怎么用1. Be动词有三个，am,is还有are.我用am，你用are, is跟着他她它，复数全部都用are.
如果遇到过去时，was来把am,is替，were来把换掉动词are