"The boy is calculating."
Why not Drengen regner ud ?
The first sentence was Vi regner det ud and wrong without ud. Now it's wrong with ! It makes no sense !
I don't know why it's like that, it's the same concept as in german though. As I got it (as a native german speaker), at regne ud goes with a subject, like 'jeg regner noget ud', I am calculating something. But if there is no subject, if you are just calculating in general, you regner. I hope that helped a bit?
Yes, you helped. I just would like a Dane to validate (no offense).
Thank you very much.