How to kni t with yarn forward(yfwd) ie k1 (yfdw, k3)

How to knit with yarn forward (yfwd)
Example k1, (yfwd, k3, )

In this case, yfwd is the same as a yarn over (‘yo’). So with the instructions that you gave you would K1, then bring the yarn to the front between the two needle tips and then return it to the back by bringing it over the right needle, then knit 3. You will have increased 1 stitch.