Ok, I know the basics for building them... dom/codom, easy.. simple recessive, easy.. double recessive, harder, but I get it...

Now, could someone show me a punnit square for a codom/simple recessive crossing? I know that if you cross a codom with a homo simple recessive you get normals and codoms, both het for the recessive gene. What if you cross a codom het for the recessive, with another (same) codom het for the same recessive?

EDIT: I don't want to know the actual results. I just want to know how to put it in a punnit square...