Use of Present Progressive
Present Progressive is used for actions in the present and focusses on the course or duration of the action.
Action taking place now
Being in the middle of doing something at the time of speaking.
Examples:
Carla is preparing the briefing.
I am looking for Mister Miller’s phone number.
Action taking place for a limited period of time only.
Actions that don't take place regularly, but only temporarily.
Examples:
Mister Thomson is on sick leave, that's why I am doing his job.
Three temporary employees are helping out this month.
Arranged future actions
Future actions that are already arranged (and maybe even jot down in a diary)
Beispiele:
I am meeting Misses Walker at 5 pm.
Bob is doing overtime tomorrow