This means you would knit 3 stitches to begin. Then purl 1 and knit 1. Repeat this across the entire row until you get to the last 3 stitches and then knit those 3 stitches.
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This means you would knit 3 stitches to begin. Then purl 1 and knit 1. Repeat this across the entire row until you get to the last 3 stitches and then knit those 3 stitches.