Gewesen / Been Schon seit / Since Trinken / Drinking Verwenden / Using
The piano has been drinking, not me.
I've been doing old-people things since I was a child.
I've been working since I was five!
I've been rapping since 1979.
I've been writing since I was 19.
I have been working since I was 14, nonstop.
I've been rapping since I was 13.
I've been writing since I was 7, but before that, I was orally making stories.
I've been playing drums since I was 7.