现在完成时中非延续动词come变成be的例子谁有?

现在完成时中非延续动词come变成be的例子谁有?
现在完成时中非延续动词come变成be的例子谁有?

现在完成时中非延续动词come变成be的例子谁有?
I am here ---i haVE been here for 2 days.

He came to China thirty years ago.
He have been in China for thirty years.

I have been to China.
I came to China.