de,de/dem Entall “de” TRUE de dem deres deres dem selv TRUE TRUE TRUE Singular “de” is used by some as calque of the English singular ”they”.
den,den/det Personlig “den" TRUE den det dets dets den selv FALSE FALSE TRUE Although “den” is normally used for objects, not people, some actually do like being called that way. If someone wants you to call it “den”, it's not offensive – it's actually respectful. But remember that ”den/det” pronouns have a history of transphobic use, so only with people who explicitly wish it.