Lace Knitting Stitches
A hole can be introduced into a knitted fabric by pairing a yarn-over stitch with a nearby (usually adjacent) decrease. If the decrease precedes the yarn-over, it should typically slant right as seen from the right side( k2tog, not k2tog tbl).If the decrease follows the yarn-over, it should typically slant left as seen from the right side ( k2tog tbl, not k2tog).These slants pull the fabric away from the yarn-over, opening up the hole. Pairing a yarn-over with a decrease keeps the stitch count constant.Many beautiful patterns separate the yarn-over and decrease stitches, k2tog, k5, yo.Separating the yarn-over from its decrease "tilts" all the intervening stitches towards the decrease.The tilt may form part of the design, e.g., mimicking the veins in a leaf. There are few constraints on positioning the holes, so practically any picture or pattern can be outlined with holes.