The defendant [name of acting partner] and the defendant [name of nonacting partner] are partners.
It is denied that [name of acting partner] was acting within the scope of the partnership business.
If the defendant [name of acting partner] was acting within the scope of the partnership business, and if you find against [name of acting partner], then you must find against [both] [all] defendants.
If you find for [name of acting partner], then you must find for [all] [both] defendants.
If you find against [name of acting partner], but you do not find that [name of acting partner] was acting within the scope of the partnership business, then you must find for the defendant [name of nonacting partner].