Works on multiples of 3 plus 1 stitches.
Row 1: Knit 1. *Knit the next stitch, but instead of pulling it off the left-hand needle, bring the yarn forward and purl the leg of that stitch that's still on the needle together with the next stitch, knit 1. Repeat from * across.
Row 2: Purl.
Repeat these 2 rows for pattern.