Lace Knitting 21

Techniques used 
K: Knit
P: Purl
Yo: Yarn over
K2tog: Knit 2 together
Ssk: Slip slip knit

Multiple of 22 stitches.
Row 1 (RS): knit.
Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24: purl.
Row 3: p4, *(k2tog, yo, k1) x2, k2tog, yo, p14*, (k2tog, yo, k1) x2, k2tog, yo, p10.
Row 5: k3, *(k2tog, yo, k1) x2, k2tog, yo, k14*, (k2tog, yo, k1) x2, k2tog, yo, k11.
Row 7: p2, *(k2tog, yo, k1) x2, k2tog, yo, p14*, (k2tog, yo, k1) x2, k2tog, yo, p12.
Row 9: k1, *(k2tog, yo, k1) x2, k2tog, yo, k14*, (k2tog, yo, k1) x2, k2tog, yo, k13.
Row 11: *(k2tog, yo, k1) x2, k2tog, yo, p14, rep *.
Row 13: knit.
Row 15: p9, k1, *(yo, ssk, k1) x2, yo, ssk, p13, k1*, (yo, ssk, k1) x2, yo, ssk, p4.
Row 17: k11, *(yo, ssk, k1) x2, yo, ssk, k14*, (yo, ssk, k1) x2, yo, ssk, k3.
Row 19: p11, k1, *(yo, ssk, k1) x2, yo, ssk, p13, k1*, (yo, ssk, k1) x2, yo, ssk, p2.
Row 21: k13, *(yo, ssk, k1) x2, yo, ssk, k14*, (yo, ssk, k1) x2, yo, ssk, k1.
Row 23: p13, k1, *(yo, ssk, k1) x2, yo, ssk, p13, k1*, (yo, ssk, k1) x2, yo, ssk.
Repeat rows 1-24.