I translated this as "My father's father is my paternal grandfather" just to see what would happen. It wasn't accepted. Maybe it should be...
Yeah but no one talks like that
What about bedstefar and bedstemor ? Is that less commonly used in spoken language perhaps ?
We use it. I think it depends on the family. I grew up using farmor og farfar, but if I reference my own parents to my kid I mostly use "bedsteforældre/-far/-mor"
OK, thanks for explanation !