Okay I have done that now I'm stuck on this.
Cast off 5(6:7:8:9) sts at beg of next and 3 foll alt rows. 20(22:24:26:28) sts. Work 8(10:10:12:12) rows straight.
What do they mean by at the beginning of next and 3 following alternative rows? Does it mean every other row because I'm still working stockinet sts.