How can I convert shapes to curves?
I'm migrating from CorelDRAW to Adobe Illustrator.
Being a beginner in Ilustrator I wonder how I could convert standard shapes, like rectangles or ellipses, into curves so I can edit a shape's path abundantly.
In CorelDRAW, I first create a shape and then choose the Convert to Curves menu item. After that I can edit the curve as if I had drawn a curve by hand:

How can I do this with Adobe Illustrator?
