be able to do 的be应该怎么用,直接用be还是用is am are is am are 跟 be 有什么区别?

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be able to do 的be应该怎么用,直接用be还是用is am are is am are 跟 be 有什么区别?
be able to do 的be应该怎么用,直接用be还是用is am are is am are 跟 be 有什么区别?

be able to do 的be应该怎么用,直接用be还是用is am are is am are 跟 be 有什么区别?
be是be动词,有多种形式
人称单数转为is ,复数转为are
第一人称单数是am
eg.
I am able to swim 我会游泳
We are able to swim 我们会游泳
学习进步~若觉得满意~请记得采纳~∩_∩

当然是 am is are 啦，这是代它们三个的词，也就是动词原形呗

根据前面的主语选择is am are 的各种时态，而不是直接用“be”

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