Present Perfect Continuous
Form: HAVE / HAS + BEEN + verb-ing.
I have been working. She has been studying.
Use 1: Activity that started in the past, is still happening now.
'It has been raining since yesterday.' 'I have been waiting for an hour.'
Use 2: A recently finished activity whose effect is visible.
'I am tired. I have been running.' 'Her eyes are red. She has been crying.'