Present perfect continuous tense       Main Meaing: గతంలో ఒక పని ప్రారంభించబడి అది ఇప్పటికీ కూడా  ఇంకా…

2. Duration of an ongoing action:       To highlight how long an action has been happening…

3. Recent actions with present results:     To indicate that an action started in the past…

4. Repeated  Actions:     To describe an action that has been repeated over a period…

5. Emphasizing the activity:      To put emphasis on the activity,  itself rather than the result…

6. Unfinished  Actions:         To discuss actions that are incomplete but have been happening over…