>>>I guess I'm quite often translating - in my mind this was "posećujem već 16 godina" - "I visit already 16 years", where "already" is not a good translation; there's no word for this meaning of "već"... and yes, it doesn't feel right to me to use "have been frequenting" because it's not in the past.
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>>I think "I have ... " in English is the present perfect (past perfect is "I had ..."), so "I have been ..." includes the present.
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>But "been frequenting" is past, right?

No, "I have been frequenting" suggests that I'm still doing it, you see.
"I frequented that club in my twenties" is in the past

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>>>I'm still there - actually, I would have been there this moment, had you not jumped in with this.
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>>Just like Jethro Tull, you're "living in the past (tense)" :-)
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>OK, you found me :). Tull fan (albeit not of the rotating ventilating persuasion) for decades.

Oh, I already knew that :-) BTW, "fan" is short for "fanatic", so not the sane word as the ventillating device.