Shown with a cast-on count of 12 stitches.  

• Round 1: K2, [yo] twice, *k4, [yo] twice, repeat from * to last 2 sts, k2 (multiple of 6 sts, plus 6).
• Round 2: K2tog, p1, k1, *[k2tog] twice, p1, k1, repeat from * to last 2 sts, k2tog (multiple of 4 sts, plus 4).
• Round 3: Yo, *k4, [yo] twice, repeat from * to last 4 sts, k4, yo (multiple of 6 sts, plus 6).
• Round 4: K1, *[k2tog] twice, p1, k1, repeat from * to last 5 sts, [k2tog] twice, p1 (multiple of 4 sts, plus 4).