PRESENT
Actions at the moment of Speaking
Present Continuous
Finished actions in the past
Past Simple
Activities in progress at a certain moment in the future
Future Continuous
To emphasise the process and duration of an action
Present Perfect Continuous
It gives impportance to the completion of an action
Past Perfect
Predictions with evidence
Timetable
Present Simple
It gives importance to the duration of an action
Past Perfect Continuous
Activities that will be finished at a certain time in the future
Past events with a result in the present
Present Perfect
To describe scenes
Past Continuous
General predictions
Future will
How long an action has been in progress before a particular time in the future
Future Perfect Continuous