One of the uses of present perfect continuous is:
One continuing event
We use the present perfect continuous for a single activity that began at a point in the past and is still continuing:
Source: Cambridge Dictionary
Now, imagine this situation, I am working as web developer in a company...:
Boss: I am really disappointed with your project.
Me: Which is the reason for that?
Boss: The reason is all. Your project is so bad.
Me: Let me tell you something, I have been working on this project one year approximately and you only told me that my project is so bad without any given reason.
My question: When I said "I have been working on this project one year approximately", Am I expressing time in that tense correctly? I will explain what I mean, for example: I worked as football trainer two year ago approximately. In that example I finished my activity two year ago approximately, but in the first example of this paragraph the activity began in the past and is still continuing, I did not use ago, for me ago sounds like past (started/finished in the past), I do not know if I am right or not.
