Shown with a cast-on count of 12 stitches.  

• Row 1 (RS): K12.
• Row 2: P12.
• Row 3: Sl1 wyib, k1, [yo, k2tog] 3 times, yo, k4 (13 sts).
• Rows 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, and 34: Purl.
• Row 5: Sl1 wyib, k1, [yo, k2tog] 3 times, yo, k5 (14 sts).
• Row 7: Sl1 wyib, k1, [yo, k2tog] 3 times, yo, k6 (15 sts).
• Row 9: Sl1 wyib, k1, [yo, k2tog] 3 times, yo, k7 (16 sts).
• Row 11: Sl1 wyib, k1, [yo, k2tog] 3 times, yo, k8 (17 sts).
• Row 13: Sl1 wyib, k1, [yo, k2tog] 3 times, yo, k9 (18 sts).
• Row 15: Sl1 wyib, k1, [yo, k2tog] 3 times, yo, k10 (19 sts).
• Rows 17 and 33: Knit.
• Row 19: Sl1 wyib, [k2tog, yo] 4 times, k2tog, k8 (18 sts).
• Row 21: Sl1 wyib, [k2tog, yo] 4 times, k2tog, k7 (17 sts).
• Row 23: Sl1 wyib, [k2tog, yo] 4 times, k2tog, k6 (16 sts).
• Row 25: Sl1 wyib, [k2tog, yo] 4 times, k2tog, k5 (15 sts).
• Row 27: Sl1 wyib, [k2tog, yo] 4 times, k2tog, k4 (14 sts).
• Row 29: Sl1 wyib, [k2tog, yo] 4 times, k2tog, k3 (13 sts).
• Row 31: Sl1 wyib, [k2tog, yo] 4 times, k2tog, k2 (12 sts).