history: My friend is literally changing his moving day, so that I can help.  I had to work on the first day, so he changed it... My friend asked me to help him move one day_comma_ but I was working that day.
current: as a matter of fact my friend asked me help him move recently , but i was busy at work too he understood 
next: Yeah my friend understood, and then changed his whole moving day to a day I had off...