Very basic yarn over question

I am trying to figure out exactly what this means:
[COLOR=“DarkSlateGray”]Knit 1, Knit 2 together, yarn over, knit 2 together, knit to the end of the row.[/COLOR]
I understand the beginning and end part what concerns me is is the yarnover. Does the pattern mean yarnover and automatically including a knit stitch or YO using the knit 2together?
Thanks for all your help

you will knit 2 sts together and then bring your yarn from the back to the front, then up over your rt hand needle and to the back again. You’re basically creating a loop to make up for the decrease from the k2tog. After the yarn over, you do another k2tog.

thank you!

A YO is just wrapping your yarn around the needles, it doesn’t include a knit stitch. You might have a pattern that is k1, yo, p2tog or k2tog, yo, k1. Just wrap the yarn around and do whatever the next stitch is; these are separate steps.