Possessive pronouns in Arabic grammar are essential for expressing ownership and relationships. They are added to the end of a noun as suffixes, and depending on the gender and number of both the possessor and the possessed, they take different forms. In Arabic, possessive pronouns function differently from English since they are added directly to the noun, while in English, they are separate words. Being able to use possessive pronouns correctly in Arabic is vital for effective communication and understanding.