Initial / Medial / Final forms of letters

The following table shows letters of the alphabet in isolation, followed by the same letter repeated three times to indicate its form as an intial, medial and final group letter.

ككك ك للل ل ممم م ننن ن ههه ه ووو و ييي ي

ضضض ض ططط ط ظظظ ظ ععع ع غغغ غ ففف ف ققق ق

ددد د ذذذ ذ ررر ر ززز ز سسس س ششش ش صصص ص

ااا ا ببب ب تتت ت ثثث ث ججج ج ححح ح خخخ خ