The Present Perfect Continuous Tense
We use the present continuous for a number of reasons:
Continuing activities: Did you recently or long ago start doing something every week? Maybe you did, for example: I`ve been playing basketball for 10 years. It is also a good idea to add the amount of time you have been doing it.
If you have been doing an activity which has caused (Japanese: 原因) the current situation (状況). For example: My leg hurts, I have been running all day.
For questions, when you say `How long` for the question, we use the present perfect continuous: How long have you been married?
Alot of the time we use the words lately, recently, all (day), every (morning), for, and since. For example:
I have been thinking about her all week.
Please pay attention to present perfect simple and present perfect continuous.
If we have finished something, but we do not know when it was finished, we write in the present perfect simple tense. If it is continuing at present, and not finished, we write in the present perfect continuous tense.
I have finished my studies (We do not know when they were finished): This is the present perfect simple tense.
I have been finishing my studies (We are continuing it, and not finished): This is the present perfect continuous tense.