So why do you say "Han er gået i seng" but "Tanten har gået hele dagen"? Does it have anything to do with the woman just walking around instead of walking in a certain direction?
When the aunt has started her walk it is "tanten er gået". When she has finished her walk it is "tanten har gået...".
He has gone to bed="han er gået i seng". When he gets up you could say "han har været i seng"="he has been to bed" but we would normally say "han er stået op"="he has gotten up".
Tanten...... old lady..... aunt.... what? Tant = an old lady right? Not specifically my aunt or an aunt?
Tante directly translates to "aunt". But it also can be an endearing term that children use for older women. Some English speakers also say "auntie" for women that are not related to them, I think.