Basic Form Seven:

1. Begin with Basic form Six, open corners pointing down.
2. On dashed lines fold right & left lower edge of top wings towards midline.
3. Fold top point down.
4. Unfold last three steps. Open top wing at bottom point and pull upwards as far as possible.
5. Press left & right corner so that the edges meet on the midline. Turn over and Repeat steps 2-4.

This is Basic Form Seven