The syntax of two existential unaccusative verbs in Polish

The paper examines the syntax of two unaccusative verbs in Polish – ubyć. perf/ubywać.imperf ‘to disappear, to decrease’ and przybyć. perf/przybywać.imperf ‘to arrive, to increase’ – with a view to shedding light on the structure of existential unaccusatives. The two above-mentioned verbs appear in two distinct paradigms – the disappearance/motion verb and the existential one – both of which are taken to represent subtypes of existential structure. Existential verbs are treated here as monadic predicates with a single small clause complement, whose internal structure may vary, depending on the predicate. The two existential unaccusatives analysed in the paper may select two different types of small clause complement, which are different from the small clause selected by the existential być ‘to be’. Thus, Polish seems to make use of three different small clause structures in existential clauses. The paper also provides evidence that in Polish, like in English, existential unaccusatives are structurally distinct from change of state unaccusatives, and thus in the two languages there is more than one way to be structurally unaccusative. The account bears on the analysis of the genitive of negation in Polish, especially the issue of its inapplicability to existential unaccusatives versus its presence with the existential być ‘to be’.