正在进行时be+doing怎么加 最好举上例子
问题描述:
正在进行时be+doing怎么加 最好举上例子
答
现在进行时be动词为am,is,are,在其后加动词ing形式,例如:I am watching TV.She is doing her homework. They are having lunch.
过去进行时be动词为was,were,然后加动词ing形式,例如:I was watching TV at this time of yesterday.She was doing her homework at that time.