You need to learn words by heart..like in english you learn is go/went/gone..here you have to learn which one goes with et and which one with en
Its same here.. æblet-the apple (notice its -et at the end..thats when it goes mit sit dit)..or et æble Uglen-the owl (notice its -en here at the end so its min sin din)..or en ugle
Thanks, I think I understand this now. "hans", "hendes", and "dens/dets" mean "another male's" and "another female's" and "another thing's" respectively and "sin/sit/sine" refer to whatever was just talked about in the sentence. I think the reason for my confusion was that I hadn't internalized the word "dens/dets" so I assumed that's what "sin" meant. I really like this distinction in Danish.
sine is used for all plural forms, be it an n or a t word in the singular form.
Therefore, since æbler (apples) is the plural form of æble, we use sine.
The same also applies to din/dit/dine:
- Din fisk ('Your fish' - fisk in an n word)
- Dit barn ('Your child' - barn is a t word)
- Dine heste ('Your horses' - heste is the plural form of hest - 'horse').