PhD student in Linguistics (2020.05419.BD), specialization area in Historical Linguistics. Maria Ribeiro is developing her research project on the distinction “ser/estar” in Medieval Portuguese, under the guidance of Professors Clara Nunes Correia (NOVA FCSH) and Paulo Osório (FAL-UBI). Maria Ribeiro graduated in Philosophy at FLUL and has a Master degree in Language Sciences at NOVA FCSH. She is also a collaborator of the research group “Grammar & Text”.