请问be going to +名词 和+be going to +动词的区别,请举例说明,

问题描述:

请问be going to +名词 和+be going to +动词的区别,请举例说明,
它们是什么时态

be going to +名词 要到名词所指的地方.I am going to Beijing tomorrow.
be+ going to +动词 要去干什么.I am going to swim.