Shown with a cast-on count of 18 stitches.  

• Row 1 (RS): K1, *k2, yo, p2tog, p2, yo, k2tog, repeat from * to last st, sl1 wyif.
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: K1, *yo, p2tog, p2, yo, k2tog, k2, repeat from * to last st, sl1 wyif.
• Row 5: K1, *p2tog, p2, yo, k2tog, k2, yo, repeat from * to last st, sl1 wyif.
• Row 7: K1, *p2, yo, k2tog, k2, yo, p2tog, repeat from * to last st, sl1 wyif.
• Row 9: K1, *yo, k2tog, k2, yo, p2tog, p2, repeat from * to last st, sl1 wyif.
• Row 11: K1, *k2tog, k2, yo, p2tog, p2, yo, repeat from * to last st, sl1 wyif.