Double Crochet Decrease Video Tutorial Double crochet is a very common crochet stitch. It is taller thansingle crochet and half double crochet, and is abbreviated dc. Step 1 Yarn over and insert the hook into the work (fourth chain from hook on starting chain) Step 2 Yarn over and draw yarn through, pulling up a loop. Step 3 Repeat steps 1 and 2 into next stitch (another dc worked up to last step). Step 4 Yarn over and draw through all three loops on hook. 1 dec completed. To decrease any other stitch (hdc, tr, et cetera) work each stitch up to the last step then yarn over and draw through all loops on hook. Explore more crochet tutorials for beginners.