With, without, for: me, pa, për
After me "with", pa "without" and për "for, about" the noun is in the accusative. Whether it is definite or indefinite depends on the meaning: me Anën — "with Ana", but me autobus — "by bus".
Me — with whom, with what
With specific people the noun is definite: me Anën, me shokun, me mësuesen. Transport, tools and additions are indefinite: me autobus — "by bus", me makinë — "by car", me kartë — "by card", kafe me qumësht — "coffee with milk". With a modifier the noun is usually definite: me makinën e Agimit — "in Agim's car". Pronouns: me mua, me ty, me të (see "Personal pronouns").
Pa — without
Usually the noun is indefinite: kafe pa sheqer — "coffee without sugar", pa probleme — "without problems". With people and with something specific it is definite: pa shokët — "without (my) friends", pa çelësin — "without the key".
Për — for, about
For a specific person or thing the noun is definite: Flasim për filmin — "We're talking about the film", një dhuratë për Anën — "a present for Ana". When the meaning is general the noun is indefinite: libra për fëmijë — "books for children". With time për means "for": për dy javë — "for two weeks".