be动词ing是什么时态

回答
瑞文问答

2024-06-24

be动词后不一定加动词ing,也可以加动词ed(过去分词)。be+动词ing表示进行时态,be+动词ed表示被动。
例如:She was watching TV at this time last night.(was+watching体现过去进行时结构)


扩展资料

  “Be+现在分词”以组成进行式时态(Continuous Tenses),如:

  Tony's maid is washing his new car.

  The children are playing in the field.

  Samuel was eating when I came in.

  We have been living here since 1959.

  形式:

  有不同的be动词,基本上为:

  am,is,are,was,were,been,being,be。

  被动语态:

  被动语态的基本结构为be+done(Be动词+动词过去分词)

  一般现在时:am/is/are+done

  一般过去时:was/were+done

  一般将来时:will+be+done

  现在进行时:am/is/are+being+done

  过去进行时:was/were+being+done

  现在完成时:have/has+been+done

  过去完成时:had+been+done

  一般构句:

  代词/专有名词+be+普通名词(如我们是亲兄弟)

  代词+be+专有名词(如我是爱丽丝)

  代词/专有名词+be+物主代词+普通名词(如我是你的亲姐妹)

  当“be”要在祈使句中出现时,陈述句可借助助动词“do”,否定句必须在前加上助动词“don't”,如:

  Don't be silly!

  Do be obedient!

  Be careful!

  Don'tbe a fool!