Be after doing something
Definition 1 of 1
Pro Tip 1/3Ireland Usage
This phrase is mostly used in Ireland, so it's important to recognize it's not as common elsewhere. 
She was after visiting her grandparents when you called.
Pro Tip 2/3Sequence Clue
Use 'be after doing' to talk about actions that have just been completed, it's a clue about the sequence of events. 
He was after finishing the report when the meeting started.
Pro Tip 3/3Immediate Past
The phrase suggests the action happened in the immediate past, almost like 'just' in other contexts. 
I was after taking the cookies out of the oven when you smelled them.