Hi, My husband also has PPA and Posterial Cortical Atrophy. It is very challenging to communicate to say the least! He gets frustrated not being able to get the words out and I just try to guess what he means. I encourage him to keep trying but he is saying less and less. I continue to pray for patience for him and for me. Look for the small blessings in each day and let go of the frustrations.. Not easy but we have to keep our sanity somehow!