Shown with a cast-on count of 9 stitches.  

• Row 1 (RS): Yo, k2tog, k1, yo, k1, yo, ssk, k3 (10 sts).
• Rows 2 and 4: Sl1 wyib, knit.
• Row 3: Yo, k2tog, k1, yo, k3, yo, ssk, k2 (11 sts).
• Row 5: Yo, k2tog, k1, yo, k2, ssk, k1, yo, ssk, k1.
• Row 6: Sl1 wyib, k2, ssk, [yo] 3 times, k2tog, knit (12 sts).
• Row 7: Yo, k2tog, k1, yo, ssk, k3, k2tog, yo, k2.
• Row 8: Sl1 wyib, k8, k2tog, k1 (11 sts).
• Row 9: Yo, k2tog, k1, yo, ssk, k1, k2tog, yo, k3.
• Row 10: Sl1 wyib, k7, k2tog, k1 (10 sts).
• Row 11: Yo, k2tog, k1, yo, sl1-k2tog-psso, yo, k4.
• Row 12: Sl1 wyib, k6, k2tog, k1 (9 sts).