Bulgarian pronouns

Bulgarian pronouns vary in gender, number, definiteness and case. They, more than any other part of speech, have preserved the proto-Slavic case system. Pronouns are classified as: personal, possessive, interrogative, demonstrative, reflexive, summative, negative, indefinite and relative.

In Bulgarian, there are two types of personal pronouns (лични местоимения): full (stressed, free) and short (unstressed, clitic). The full are used with both verbs and prepositions (only the direct object forms), whereas the clitic only with verbs. As in English, personal pronouns change depending on their function within the sentence (as a subject or an object, in other words they have cases: Nominative (Именителен), Accusative (Винителен) and Dative (Дателен). The dative clitic forms can also be used to indicate possession (most Bulgarian grammar books refer to them as short forms of the possessive pronouns). The subject forms are always strong and are used as subjects only when special emphasis is intended, since unstressed subjects recoverable from context are not overtly expressed anyway. In some special cases the full and the short forms of the object pronouns can be used together.

Nominative

Accusative

Dative

possessive

†The full forms are rather archaic and are usually substituted by accusative constructions: на мен/на мене, на теб/на тебе, на него, на нея, на нас, на вас, на тях.

There are two types of possessive pronouns: full (stressed, free) and short (unstressed, clitic). The full pronouns agree in gender and number with the modified noun and are usually put before it, the short forms (they are identical to the short dative forms of the personal pronouns) are invariable and are put after the noun ("мъжът ми"). The stressed forms can be definite or indefinite, depending on whether the noun they modify is definite or indefinite, but only the first constituent of the definite noun phrase is used with an article ("моят мъж" or rarely "мъжът мой"). The full pronouns can also be used alone (without a noun) when its clear from the context which is the noun they refer to.

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Wikipedia