関連ワード:  how to decrease on a purl row    how to decrease on a purl row in knitting    how to decrease stitches on a purl row    how to decrease at neck edge on a purl row    how to decrease at armhole edge on a purl row    how to decrease a purl stitch    how to decrease each end of a purl row    how to decrease at the end of a purl row    how to decrease at the beginning of a purl row    can you decrease on a purl row