I am working on the back of a sweater; the directions say:
K2, Kfb, k to last 4 sts, kfb, k3
Cont in st st, inc in this way at each end of 5 foll 6th rows.
I start with 74 sts, and need to end with 86.
Continue with this patter for each of the following 5 rows, and then the 6th? or is it like increase on the 5th and 6th rows until I have 86 stitches?