First, build a basic pen in your backyard, using materials of your choice. Next, set up a schedule of mealtimes, playtimes, and naps for your pooch, allowing time for potty breaks after each. Escort her out to the pen after each activity. Once there, give her a verbal cue, such as "Go now." Nothing happening within a few minutes? Walk away with her and try again 10 or 15 minutes later, or earlier if she starts sniffing around for a place to go. Be patient, and if she does have an accident, quickly bring her out to the pen and praise her so she links going potty with that location.