Hi! So I'm trying to knit my first sweater, and the patterns calls for a wave stitch and it says the following "k2tog, but don't slip the stitches off the needle, knit the first stitch and slip the stitches. k1" Does this mean I should k1, slip one, then k1? Or do I knit 2 together and then make a new stitch somehow? Any clarification would be very helpful! Thank you!!!