Your instructions say to kfb (knit in the front and back of the next stitch)your increase is made. Then rib to the last 19 stitches K2 tog then rib again to last 4. Are you clear with this section? The next section is trying to tell you to make the increases into the rib pattern as you go along.Such as k2, p2 or whatever rib pattern you are doing, so the ribs line up. Increase as you did above kfb at the beginning of the 6th row and every 6th row from then on. At the same time decrease (K2tog) once you reach the 19th stitch from the end as you did above on row 7 on every right side row. I hope this helps. If not let me know.