Here are some examples of the Present Perfect Continuous Tense:

Michael has been searching for his lost smartphone for 4 hours. 

Samantha has been curing the wound since last year. 

Her father has not been calling for hours. 

Has she been removing the dirt for long? 

They have been doing the test since this morning. 

Brian and his wife have been discussing their new year's plan for months.

The students have not been collecting their reports.

Have the animals been eating the grass?