HI, Urdu is my native language and I teach my students. Don't confuse 1. Mera / Meri /Mary are matter to Noun 2. if the noun is Singular + Masculine, we will use " Mera" 3. if the noun is Plural + Masculine, we will use " Mary" 4. if the noun is Feminine we will use " Meri" no matter noun is Singular or Plural. You can join us at Facebook. as Urdu Academy Jakarta