need tips

[gratch]

OK i'm trying to teach myself to knit I have learned to cast on and cast off knit stitch and purl stitch I have a pattern that I am trying to tackle. k4 yfwd SL1 k2tog psso yfwd so does that mean slip 1 off to the other needle pull yarn to the front knit two together (to become one stitch) as in a dec and psso is that suposed to slip over top of the k2tog