WILL (hypothetical): -Immediate decisions -Predictions
BE GOING TO:-Plans and intentions -When you can see what’s going on
PRESENT SIMPLE:-We will use with timetables (08.45…) (3rd person S, with no apostrophe) (The plane arrives at 18.00 tomorrow) (Scheduled (organizados) events)
PRESENT CONTINUOUS: I'm meeting my mother at the airport tomorrow.
FUTURE CONTINUOUS: I will be staying.
WITH WILL (BE): You will be waiting for her when her plane arrives tonight.
WITH BE GOING TO: You are going to be waiting for her when her plane arrives tonight.