To start ribbing Slip Stitch until you reach measument around your hips, joint single crochet around. Half dc repetation around 'till to your waist. start working your back pannel back & fort, until to your neck & length you want.
turn to your front pannel but do not connect the side because you have to make your armhole. content 'till you reach the length even your back pannel in the back, both extended 3 row for shoulder join back & front.
The sleeve start from the wrist ribbing working to armhole increases.