Subject-verb agreement with Genitive of Quantification in Polish co and który object relative clauses

This paper examines subject-verb agreement in Polish object relative clauses (RCs)
of two types, namely co and który relatives, in which the modified head noun (HN)
is a Genitive of Quantification phrase (GoQ). When it functions as a subject, this
phrase forces default agreement on the verbal predicate. However, whenever it
occupies the subject of a RC position, the agreement may vary between default and
full agreement, depending on the type of the RC and the grammatical gender of
the HN. This study compares subject-verb agreement with GoQ in subject relatives
(examined in Łęska 2016) with the patterns found in object RCs, based on the results
of a survey of acceptability judgements for co and który object RCs. The results
revealed an asymmetry between subject and object RCs in the possibility of default
agreement, indicating that the Case attraction analysis of Polish RCs should be
further restricted to apply only to the former.