Celtic Knot 1

Cast on 40 stitches.
Top and bottom
Right side: (K2, p4) 3 times, k4, (p4, k2) 3 times.

Wrong side: (P2, k4) 3 times, p4, (k4, p2) 3 times.

Pattern.

Row 1: (K2, p4) 3 times, 2/2LC, (p4, k2) 3 times.
All even number rows: Knit the knit stitches and purl the purl stitches.
Row 3: (K2, p4) twice, (2/2LPC, 2/2RPC) twice, (p4, k2) twice.
Row 5: K2, p4, 2/2LPC, p4, (2/2RC, p4) twice, 2/2RPC, p4, k2.
Row 7: 2/2LPC, p4, 2/2LPC, 2/2RPC, 2/1LPC, p2, 2/1RPC, 2/2LPC, 2/2RPC, p4, 2/2RPC.
Row 9: P2, 2/2LPC, p4, 2/2LC, p3, k2, p2, k2, p3, 2/2LC, p4, 2/2RPC, p2.
Row 11: P4, 2/2LPC, 2/2RPC, 2/2LPC, 2/1RPC, p2, 2/1LPC, 2/2RPC, 2/2LPC, 2/2RPC, p4.
Row 13: P6, (2/2RC, p4) 3times, 2/2RC, p6.
Row 15: P4, (2/2RPC, 2/2LPC) 4times, p4.
Row 17: P2, 2/2RPC, p4, (2/2LC, p4) 3times, 2/2LPC, p2.
Row 19: P2, k2, p4, (2/2RPC, 2/2LPC) 3times, p4, k2, p2.
Row 21: P2, (k2, p4) twice, (2/2RC, p4) twice, k2, p4, k2, p2.
Row 23: P2, k2, p4, 2/2LPC, 2/2RPC, 2/1LPC, p2, 2/1RPC, 2/2LPC, 2/2RPC, p4, k2, p2.
Row 25: P2, 2/2LPC, p4, 2/2LC, p3, k2, p2, k2, p3, 2/2LC, p4, 2/2RPC, p2.
Row 27: P4, 2/2LPC, 2/2RPC, 2/2LPC, 2/1RPC, p2, 2/1LPC, 2/2RPC, 2/2LPC, 2/2RPC, p4.
Row 29: P6, (2/2RC, p4) 3times, 2/2RC, p6.
Row 31: P4, (2/2RPC, 2/2LPC) 4times, p4.
Row 33: P4, k2, p4, (2/2LC, p4) 3times, k2, p4.
Row 35: P4, (2/2LPC, 2/2RPC) 4times, p4.
Row 37: P6, (2/2RC, p4) 3times, 2/2RC, p6.
Row 39: P4, 2/2RPC, 2/2LPC, 2/2RPC, 2/1LPC, p2, 2/1RPC, 2/2LPC, 2/2RPC, 2/2LPC, p4.
Row 41: P2, 2/2RPC, p4, 2/2LC, p3, k2, p2, k2, p3, 2/2LC, p4, 2/2LPC, p2.
Row 43: P2, k2, p4, 2/2RPC, 2/2LPC, 2/1RPC, p2, 2/1LPC, 2/2RPC, 2/2LPC, p4, k2, p2.
Row 45: P2, (k2, p4) twice, (2/2RC, p4) twice, k2, p4, k2, p2.
Row 47: P2, k2, p4, (2/2LPC, 2/2RPC) 3times, p4, k2, p2.
Row 49: P2, 2/2LPC, p4, (2/2LC, p4) 3times, 2/2RPC, p2.
Row 51: P4, (2/2LPC, 2/2RPC) 4times, p4.
Row 53: P6, (2/2RC, p4) 3times,  2/2RC, p6.
Row 55: P4, 2/2RPC, 2/2LPC, 2/2RPC, 2/1LPC, p2, 2/1RPC, 2/2LPC, 2/2RPC, 2/2LPC, p4.
Row 57: P2, 2/2RPC, p4, 2/2LC, p3, k2, p2, k2, p3, 2/2LC, p4, 2/2LPC, p2.
Row 59: 2/2RPC, p4, 2/2RPC, 2/2LPC, 2/1RPC, p2, 2/1LPC, 2/2RPC, 2/2LPC, p4, 2/2LPC.
Row 61: K2, p4, 2/2RPC, p4, (2/2RC, p4) twice, 2/2LPC, p4, k2.
Row 63: (K2, p4) twice, (2/2RPC, 2/2LPC) twice, (p4, k2) twice.
Repeat Rows 1 - 64, ending on a Row 1.

Abbreviations:
2/2 LC: Slip 2 sts to CN and hold in front, K2, then K2 from CN.
2/2 RC: Slip 2 sts to CN and hold in back, K2, then K2 from CN.
2/1 LPC: Slip 2 sts to CN and  hold in font, P1, then K2 from CN.
2/1 RPC: Slip 1 st to CN and hold in back, K2, then P1 from CN.
2/2 LPC: Slip 2 sts to CN and hold in front, P2, then K2 from CN.
2/2 RPC: Slip 2 sts to CN and hold in back, K2, then P2 from CN.