Shown with a cast-on count of 5 stitches.  

• Row 1 (RS): Kfb, sl1-k2tog-psso, kfb.
• Row 2: K1, kfb, k1, kfb, k1 (7 sts).
• Row 3: K1, kfb, sl1-k2tog-psso, kfb, k1.
• Row 4: K1, kfb, k3, kfb, k1 (9 sts).
• Row 5: K1, kfb, k1, sl1-k2tog-psso, k1, kfb, k1.
• Row 6: K1, kfb, knit to last 2 sts, kfb, k1 (11 sts).
• Row 7: K1, kfb, k2, sl1-k2tog-psso, k1, k1, kfb, k1.
• Row 8: K1, kfb, knit to last 2 sts, kfb, k1 (13 sts).
• Row 9: K1, kfb, k3, sl1-k2tog-psso, k1, knit to last 2 sts, kfb, k1.
• Row 10: K1, kfb, knit to last 2 sts, kfb, k1 (15 sts).