Stockinette stitch is the most common knitted fabric. It is created by alternating knit and purl rows.
In other words, knit a row, purl a row. The knitted side becomes the “right” side or the front of the fabric, and the purled side is the “wrong” side, or the back of the work.
How to Knit Stockinette Stitch
Row 1 (right side): Knit all stitches
Row 2 (wrong side): Purl all stitches