PIE had personal pronouns in the first and second person, but not the third person, where demonstratives were used instead. They were inflected for case and number (singular, dual, and plural), but not for gender. The personal pronouns had their own unique forms and endings, and some had two distinct stems; this is most obvious in the first person singular, where the two stems are still preserved, as for instance in English "I" and "me". There were also two varieties for the accusative, genitive and dative cases, a stressed and an enclitic form. Many of the special pronominal endings were later borrowed as nominal endings.