Shadow Ribbing
(multiple of 3 stitches plus 2)
Row 1 (RS): Knit.
Row 2 (WS): *Purl 2, knit 1; repeat from * to final 2 sts, purl 2.
(multiple of 3 stitches plus 2)
Row 1 (RS): Knit.
Row 2 (WS): *Purl 2, knit 1; repeat from * to final 2 sts, purl 2.