The Spanish construction lo que pasa es que ‘what happens is that’, ‘the thing is’ is used in a wide variety of contexts and with a range of different meanings. Linguistic research that has been carried out on this relatively common construction often fails to include empirically collected data and, as a result, the diasystematic markers thereof have only been described to a very limited extent. The main focus of this article is to investigate the use of the construction lo que pasa es que and its phonetically reduced forms lo que pasa que and lo que in two Spanishlanguage oral speech corpora collected in Getxo (Basque Country) and Barcelona (Catalonia). These data are used to carry out a quantitative and qualitative study of the presence or absence of this construction in both regions of language contact, something which has yet to be considered or systematically analysed in the relevant research. The study identifies a statistically relevant diatopic markedness of the forms lo que pasa es que, lo que pasa and pasa que while also providing empirical proof for the pragmatic use of these constructions within the varieties investigated. Furthermore, it confirms the use of additional reduced forms of said constructions and describes their development.

The Spanish construction lo que pasa es que ‘what happens is that’, ‘the thing is’ is used in a wide variety of contexts and with a range of different meanings. Linguistic research that has been carried out on this relatively common construction often fails to include empirically collected data and, as a result, the diasystematic markers thereof have only been described to a very limited extent. The main focus of this article is to investigate the use of the construction lo que pasa es que and its phonetically reduced forms lo que pasa que and lo que in two Spanishlanguage oral speech corpora collected in Getxo (Basque Country) and Barcelona (Catalonia). These data are used to carry out a quantitative and qualitative study of the presence or absence of this construction in both regions of language contact, something which has yet to be considered or systematically analysed in the relevant research. The study identifies a statistically relevant diatopic markedness of the forms lo que pasa es que, lo que pasa and pasa que while also providing empirical proof for the pragmatic use of these constructions within the varieties investigated. Furthermore, it confirms the use of additional reduced forms of said constructions and describes their development.