Shown with a cast-on count of 11 stitches.  

• Rows 1, 5, and 9 (RS): Knit.
• Rows 2, 6, and 10: Purl.
• Rows 3 and 11: K1, *sl1 wyib, k3, repeat from * to last 2 sts, sl1 wyib, k1.
• Rows 4 and 12: K1, sl1 wyif, *k3, sl1 wyif, repeat from * to last st, k1.
• Row 7: K1, *k2, sl1 wyib, k1, repeat from * to last 2 sts, k2.
• Row 8: K2, *k1, sl1 wyif, k2, repeat from * to last st, k1.
• Repeat rows 3-10.