Eyelet Lace 19 in the round

PATTERN IN THE ROUND
Cast on a multiple of 18 stitches.
Round 1: *K9, yo, k1, yo, k3, sl1-k2tog-psso, p2, repeat from *.
Rounds 2, 4, 6, 8, 10, and 12: Knit.
Round 3: *K10, yo, k1, yo, k2, sl1-k2tog-psso, p2, repeat from *.
Round 5: *K3tog, k4, yo, k1, yo, k3, [yo, k1] twice, sl1-k2tog-psso, p2, repeat from *.
Round 7: *K3tog, k3, yo, k1, yo, k9, p2, repeat from *.
Round 9: *K3tog, k2, yo, k1, yo, k10, p2, repeat from *.
Round 11: *K3tog, [k1, yo] twice, k3, yo, k1, yo, k4, sl1-k2tog-psso, p2, repeat from *.
Repeat rounds 1-12.
Worked flat, see Eyelet Lace 19: Diagonal Fern stitch