Need help translating knitting pattern

I am new to knitting I understand pretty much all of this pattern but if I could get some help I would be so appreciative…ok here goes.

(i understand)-row1-(RS) K1. *Sl1p. K1. Rep from * to end row
(i understand)-row2-purl
(i understand)-row3-K1. *K1. Sl1P. Rep from * to last 2 ssts. K2
(i understand)-row 4- purl
(I understand somewhat)-next row-Inc 1 st in first st. Pat to last 2 sts. Inc 1 st in next st. K1
(don’t understand)-Next 3 rows- work even in pat.

any help would be awesome!

Continue for three rows in the slip stitch pattern that you established in the first part of the pattern. In this case you’ll do rows 2, 3, and 4 again since you are increasing on the right side and your next row is the back.

Whenever they say ‘work in pattern’ basically they want you to continue as you have been.