Make a curved surface from a network of curves

Rhino Rhino for Windows
1

Hello, i cant figure out how to make a surface like the one on the picture. If i use rebuild and then move points, it dosnt relate to the shape af the curve anymore.

Thank you so much!
Anders

2

From your sketch it looks like it should be done with four surfaces, something like an extruded arc copied/rotated four times and trimmed.
Check the example joined.
example.3dm (833.9 KB)