A reflexive possessive pronoun is used instead of hans, hendes, dens or dets, when you are talking about the possession of something in the 3rd. person singular, where the subject possesses the item in question.
Again, there is a difference between n-words and t-words.
n-word: sin t-word: sit plural: sine
en kjole
a dreess
Hun skal vaske sin kjole.
She has to wash her dress.
et hus
a house
Hun maler sit hus.
She paints her house.
bøger
books
Lars har læst alle sine bøger.
Lars has read all his books.
Comparison:
There is no comparable reflexive possessive pronoun in English.
3 Stedord
3.3 Tilbagevisende ejestedord
Tilbagevisende ejestedord bruges i stedet for hans, hendes, dens og dets, når man omtaler ens eget i 3. person ental.