How do I make a surface from these curves

Hi, I’m new to rhino, I’ve got some Curves that are non-planar. I’m baisically tring to fill in the curves with a surface(See image)

how can i do this?

Are you looking to make them coplanar so that you can make a planar surface from them?

i would just Patch. after that select the curves (they probably are selected still) and use Trim then click on the parts you want to cut out.

best is to post a file usually. because from a screen shot all we can do is guess.

Make the curves planar. Reveal their CPs and then pull them to the same xz-plane with SetPt.

Always share the file, would be easier to help you