Using verbs differently

[Roselin]

Please help with the correct use of the verb.

There are two attempts using different from of the verbs. Which one is correct and why?

'What ARE you DOING next weekend?'' It depends on the weather. If it is fine we WILL GO somewhere by car,if it is wet, we WILL probably STAY at home.'
' When WILL Jack ARRIVE?' ' Some t ime this evening.'.'And how WILL he COME here?'.' I don't know yet, I suppose he WILL COME by car.'

-------another one is this----------

'What ARE you DOING next weekend?'' It depends on the weather. If it is fine we SHALL GO somewhere by car,if it is wet, we SHALL probably STAY at home.'
' When IS Jack ARRIVING?' ' Some t ime this evening.'.'And how IS he COMING here?'.' I don't know yet, I suppose he IS COMING by car.

[luschen]

Both of your options sound correct to me. Here is a detailed explanation on the difference (if any) between will and shall:

The Difference Between “will” and “shall”


*** Not a teacher ***