wll be,will have,be going to have,be going to be的区别是什么

(there) will be 将有,表某事发生的状态.如：There will be a car exhibition in town next week.
will have 将有,表某人将拥有某物,呈理想状态.如：I will have a car in the future.
be going to have 将有,表已构成事实的将有状态,就是你一定会有的,但是是在未来拥有.I am going to have a car after my graduation.
be going to be 将成为,表未来会成为的职业、状态等.如：She is going to be a doctor in 2 years.