In Arabic class, I began learning verb conjugations, and we observed the patterns for all the different ones (minus the dual forms) corresponding with their pronouns. We used the verb شرب (drank) as our base word. While we learning our conjugation chart, I noticed that تشرب applies to both the second person masculine and third person feminine. With context, the distinction is clear, but why did the language develop to have them be the same?
As a side note, do we have any well-documented analysis on the development of Arabic verb conjugation?