see

[bread]

I am picking him up tomorrow.
I will pick him up tomorrow.
I am going to pick him up tomorrow.
What is the difference among the sentences above?

Besides, when do we use "is/am/are going to+verb" and "will +verb?"

Thanks!!!

 

[Tdol]

I am picking him up tomorrow. arranged and agreed
I will pick him up tomorrow making an offer now
I am going to pick him up tomorrow. an intention
;-)

 

[bread]

I am picking him up tomorrow. arranged and agreed
I will pick him up tomorrow making an offer now
I am going to pick him up tomorrow. an intention
;-)

So do we say "you will be having an exam on Thursday" instead of "you will have an exam on Thursday?"

I still can't distinguish the difference between

I will pick him up tomorrow making an offer now
I am going to pick him up tomorrow. an intention
;-)

Could you give me an example?

Thanks a billion!