Shown with a cast-on count of 12 stitches.  

• Row 1 (RS): K2, yo, k2tog, k1, [yo] twice, k2tog, k5 (13 sts).
• Row 2: K7, p1, k2, yo, k2tog, k1.
• Row 3: K2, yo, k2tog, k9.
• Row 4: K10, yo, k2tog, k1.
• Row 5: K2, yo, k2tog, k1, [yo] twice, k2tog, [yo] twice, k2tog, k4 (15 sts).
• Row 6: K6, p1, k2, p1, k2, yo, k2tog, k1.
• Row 7: K2, yo, k2tog, k11.
• Row 8: K12, yo, k2tog, k1.
• Row 9: K2, yo, k2tog, k1, [yo] twice, k2tog, [yo] twice, k2tog, [yo] twice, k2tog, k4 (18 sts).
• Row 10: K6, p1, k2, p1, k2, p1, k2, yo, k2tog, k1.
• Row 11: K2, yo, k2tog, k14.
• Row 12: BO 6 sts, k8, yo, k2tog, k1 (12 sts).