What are you doing now?
now, at the moment, at the time of speaking
What have you done today?
near past, things that have just finished
What is the weather going to be like tomorrow?
going to (prediction with a proof)
What will you be doing this time in July?
an action in progress in the future
What will the weather be like next summer?
prediction (no proof)
What are you going to do for Christmtas?
going to (zamierzam)
What should you do to help out for Christmas?
what we should / shouldn't do
What will you have done by the end of December?
finished future, completed future tasks
What had you done before you entered the house today?
2 past actions, one happened before the other
What will you do to help our for Chrismtas?
future intention / offer / promise
What did you do yesterday?
finished past
What are you doing next Tuesday?
present continuous (arranged future)
What have you been doing recently? (You look tired)
continuous action, we can see its result now
What were you doing yesterday between 9 and 12?
finished continuous past action
How old will we be next year?
future fact -> will + be
What do you do every Monday?
present simple (routine)