Concordant use of the existential verb 'haber' (there is/are) in the written language of learners of Spanish as a foreign language

The study presents an analysis of the concordant and non-concordant usage of the existential verb haber (there is/are) in two corpora of language learners: CAES and CORANE. The data is compared with that obtained from a previous study on the pluralization of haber by native Spanish speakers based on CORPES. The purposes are to know how learners experience a phenomenon in variation, and to contribute to the systematization of content regarding standards, usage and geolectal variation in SFL/SSL, so we also propose a way of dealing with the verb haber, aimed at SFL/SSL professionals. The results show that concordant usage among learners is minority compared to non-concordant use, although it is high compared to its use among native Spanish speakers.