The Present Perfect Continuous Tense is used to express the continuity of the duration of an action which began in the past and is still continuing to the present.
Example: I am listening to the radio now. I turned it on an hour ago. So I have been listening to the radio for an hour.
FORMS:
- Affirmative (Subject + have/has + been + Verb1 + ing)
Example: I have been cleaning the kitchen for an hour.
- Negative ( Subject + have/has not + been + Verb1 + ing)
Example: I have not been cleaning the kitchen for an hour.
- Question (Have/Has + subject + been + Verb1 + ing ?)
Example: Have you been cleaning the kitchen for an hour?
Adverbs of time:
since, for, all (morning, day, etc.), the whole (day, week, etc.)
Note:
When we use the verbs such as: “live, stay, study, learn, teach, work, wait, stand, sleep, sit, watch” with since or for, we can differentiate between the Present Perfect Simple and the Present Perfect Continuous tense when there is additional information, whether it emphasize the result or the continuity of the action.
