How can I make surface?

i have 4pts, but i cannot make surface

because there are not in plan.

how can i make surface?

make surface.gh (9.2 KB)

you can feed 4 points into Surface from Points with U=2.
order matters - the points have to be sorted “grid like”. (not Boundary-like)

Or you can create a “hyperbolic paraboloid” or “doubly ruled surface” surface from 4 points (degree 1)

here too!
if ABCD order is counter-clockwise on screen, the resulting surface normal will point towards you, the viewport camera.