„Niesforny” biernik rzeczowników męskonieżywotnych w liczbie pojedynczej: o ekspansji tego zjawiska we współczesnym języku polskim i jego czynnikach

The subject of this article are the conditions for use Polish masculine inanimate singular nouns in accusative with -a suffix as a systemic morphological characteristic animate nouns. author proposes several ways to explain reasons expansion. Theory wise, study is based on system-functional grammar well natural grammar. emphasis placed description grammatical system perspective speech activity language users, focusing particular principles ergonomics and self-regulation. presents current knowledge Acc=Gen syncretism, discusses set factors influencing modern Polish: ergonomic, semantic, syntactic, frequency-driven pragmatic.