This tutorial is about making the basic shape of a three-petal flower. You can also make many hollow changes on the basic shape.
1. Prepare a square piece of paper
2. Fold along the diagonal line
3. The folded look
4. Fold along the high line of the triangle
5. The folded look
6. Open
7. Hold the two corners with both hands and fold them over each other
8. Flatten after folding
9. Cut as shown
10. Open and complete.