Be 动词的形式
be , is , am , are , was , were , being , been
is , am , are : 一般现在时的be动词
1.The man is back
2.They are back
was , were ： 过去时态 的be动词
3.He was back
4.They were back
being ：be动词的现在分词
been : be动词的过去分词
5.They have been back
Be动词的用法（后面接名词，形容词，地点副词或短语作补足语）
The man is a teacher
Mary's new dresses(dress) are colorful
My mother was in the kitchen
Be动词的练习
1.他们是老师（they， teacher）
They are teachers
2.他以前是一名老师（he ， a teacher , before）
He was a teacher before
3.他已经当了3年的老师。（for 3 years）
He has been a teacher for 3 years
网友评论