Rank and File Textured Pattern

Pattern
Cast on any even number of stitches.
Row 1 (RS): Knit.
Row 2 (WS): Knit 1, *Slip 2 wyif, put yarn to back, slip the same 2 sts back to LH needle and knit them; rep from * to last st, Knit 1.
Row 3: Knit 1, *Purl 1, slip 1 wyib; rep from * to last st, Knit 1.
Row 4: Knit 1, *Slip 1 wyif, Knit 1; rep from * to last st, Knit 1.
Rep Rows 1-4.