Free Alternate 2×2 Rib Knitting Stitch.
Multiple of 4 sts + 2
Row 1 (RS): *K2, p2; rep from * to last 2 sts, k2.
Row 2 (WS): *P2, k2; rep from * to last 2 sts, p2.
Row 3: *P2, k2; rep from * to last 2 sts, p2.
Row 4: *K2, p2; rep from * to last 2 sts, k2.
