With color A, cast on a multiple of 8 sts + 2.
Knit two rows stockinette stitch (knit the RS row, purl the WS row)
Row 1: With color B, k1, * sl4 wyif, k4; repeat from * to last st, k1.
Row 2: With color B, p1, * p3, sl4 wyib, p1; repeat from * to last st, p1.
Row 3: With color B, k1, * k2, sl4 wyif, k2; repeat from * to last st, k1.
Row 4: With color B, p1, * p1, sl4 wyib, p3; repeat from * to last st, p1.
Row 5: With color B, k1, * k4, sl4 wyif; repeat from * to last st, k1.
Row 6: With color B, p1, * sl3 wyib, p4, sl 1 wyib; repeat from * to last st, p1.
Row 7: With color A, k1, * k1, sl4 wyif, k3; repeat from * to last st, k1.
Row 8: With color A, p1, * p4, sl4 wyib; repeat from * to last st, p1.
Row 9: With color A, k1, * sl3 wyif, k4, sl1 wyif; repeat from * to last st, k1.
Row 10: With color A, p1, * sl2 wyib, p4, sl2 wyib; repeat from * to last st, p1.
Row 11: With color A, k1, * sl1 wyif, k4, sl3 wyif; repeat from * to last st, k1.
Row 12: with color A, p1, * sl4 wyib, p4; repeat from * to last st, p1.
Repeat rows 1-12.

Knitting abbreviations:
Knit: K | Purl: P | Slip stitch as if to purl: Sl
With yarn in back: Wyib  |  With yarn in front: Wyif.