Treble Crochet
Yarn over twice. Insert hook into the next stitch. Yarn over and pull up a loop. Now there are 4 loops on your hook. Yarn over, and pull the yarn through two loops. Now there are 3 loops on your hook. Yarn over, and pull the yarn through two loops. Now there are 2 loops on your hook. Yarn over, and pull the yarn through last two loops.