is are were am was 分别是什么主语的be动词

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/09 15:47:16

is are were am was 分别是什么主语的be动词
is are were am was 分别是什么主语的be动词

is are were am was 分别是什么主语的be动词
（he she it）is was,（we they you）are were,I am