FUTURE TENSES
WILL:
-Future actions happen without the speaker's intention
-Prediction, assumption
-Spontaneous action
GOING TO:
-Planned action in the future
-Logical consequence (sth. is going to happen)
PRESENT SIMPLE:
Future action is fixed (e.g. timetable)
PERFECT FUTURE:
-A situation will already have happened before a certain time in the future
PROGRESSIVE FUTURE:
-Action will definitely happen (it usually happens)
PROGRESSIVE PRESENT:
-Planned action in the near future