UsingUse the present perfect continuous when events occurred in the past and continue the current until it takes up, but haven't completed it still continued to reach the future.
The use of the present perfect continuous when the incident happened in the past. And continue up to the present It's not over yet It continues into the future.
Use the using present perfect continuous when events happened in the past. And walked up to present, but it is not over yet. I still continue in the future.