YF , k1?

I have an old book of knitting stitch patterns. I’ve noticed that several of the ones that appeal to me state: YF (bring yarn to front) then k1 or more stitches.

Can someone explain to me how that is done? There are no instructions in the book explaining how to do this.

I don’t believe it can be done, unless maybe you ktb. The directions though don’t tell you to knit through the back.

When used like this, yf and knit the following stitches is the same as a YO. If you bring the yarn to the front, then in order to knit the next stitch, you have to bring the yarn over the needle. It’s a british term that was also used in US patterns a long time ago.