Shown with a cast-on count of 8 stitches.  

• Rows 1, 3, and 5 (RS): *K2tog, k2, yo, repeat from *.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, and 20: Purl.
• Row 7: *K2tog, k1, yo, k1, repeat from *.
• Row 9: *K2tog, yo, k2, repeat from *.
• Rows 11, 13, and 15: *Yo, k2, ssk, repeat from *.
• Row 17: *K1, yo, k1, ssk, repeat from *.
• Row 19: *K2, yo, ssk, repeat from *.