have got/have gotten

readok2009

In the flavour of English that I speak it's very common to use \"have
got\" to express possession (e.g. \"I've got a swimming pool in my
garden\") or obligation (e.g. \"I've got to work over the weekend\"),
even though \"have\" alone would suffice.

In both these cases \"have gotten\" instead of \"have got\" sounds
completely wrong to my ears. So, I was wondering, do people who would
normally say \"have gotten\" instead of \"have got\" avoid these usages,
or do they make an exception in these cases and say \"have got\"?