[Yarn over, insert hook in next stitch, yarn over and pull up loop] 2 times, yarn over and draw through all loops on hook— 1 stitch decreased.
Yarn over, insert hook from front to back to front around post of corresponding stitch below, yarn over and pull up loop, yarn over and draw through all loops on hook.
Yarn over, insert hook from back to front to back around post of corresponding stitch below, yarn over and pull up loop, yarn over and draw through all 3 loops on hook.
*Yarn over, insert hook in stitch, yarn over and pull up loop (3 loops on hook), yarn over (Figure 1) and draw through all loops on hook (Figure 2); repeat from *.