butas

Nouns in Lithuanian have grammatical gender (masculine or feminine). 'Butas' is a masculine noun.

Mano butas (My apartment) - 'butas' is masculine, so we use 'mano' (my) which agrees with masculine nouns.

Lithuanian nouns decline, meaning their endings change depending on their role in a sentence (case). 'Butas' in its basic form is in the nominative case.

Aš turiu butą. (I have an apartment.) - Here, 'butą' is in the accusative case because it's the direct object.

To form the plural of 'butas', the ending changes. The plural nominative form is 'butai'.

Du butai (Two apartments) - 'butai' is the plural nominative form.

Adjectives describing 'butas' must agree with its gender and case. For example, 'dideli' (big) is masculine nominative plural.

Didelis butas (A big apartment) - 'didelis' is masculine nominative singular, agreeing with 'butas'.

Prepositions often govern the case of the noun that follows. For 'butas', prepositions like 'į' (into) require the accusative case.

Einu į butą. (I am going into the apartment.) - 'butą' is in the accusative case after 'į'.