- 2026-2030 Spanish Ministry of Science, Innovation and Universities and ERDF (European Regional Development Fund), [PID2025-168895NB-I00], The psychological reality of bilinguals’ linguistic intuitions: word order and agreement, PRINCIPAL INVESTIGATOR: R. Fernández Fuertes (University of Valladolid, Spain)
- 2024-2028 Castile and León Regional Government and ERDF (European Regional Development Fund) [VA136P24], Language representation and processing in contexts of languages in contact: Human and idiomatic capital in Castile and Leon, PRINCIPAL INVESTIGATOR: R. Fernández Fuertes (University of Valladolid, Spain)
- 2023-2025 Spanish Ministry of Science and Innovation (Spain). [RED2022-134920-T], MULTILINGUA: Network on Bi/Multilingualism in Spain, COORDINATOR: Silvia Perpiñan Hinarejos (Universitat Pompeu Fabra). PRINCIPAL INVESTIGATOR from the University of Valladolid: R. Fernández Fuertes
- 2018-2022 Spanish Ministry of Science, Innovation and Universities and ERDF (European Regional Development Fund) [PGC2018-097693-B-I00], Linguistic competence indicators in heritage and non-native languages: linguistic, psycholinguistic, and social aspects of English-Spanish bilingualism, PRINCIPAL INVESTIGATOR: R. Fernández Fuertes (University of Valladolid, Spain)
- 2017-2019 Regional Government of Castile and León (Spain) and ERDF [VA009P17], Aspects of the international dimension of language contact: diagnoses of English-Spanish bilingual linguistic competence, PRINCIPAL INVESTIGATOR: R. Fernández Fuertes (University of Valladolid, Spain)
- 2010-2012 International Council for Canadian Studies & Department of Foreign Affairs and International Trade [Canada-Europe Award] [10-CEA-A], Minority and majority languages in Canada and Spain: English, French and Spanish as first, second and heritage languages, PRINCIPAL INVESTIGATOR: R. Fernández Fuertes (University of Valladolid, Spain)
- 2007-2010 Spanish Ministry of Science and Technology [HUM2007-62213], Elaboration and analysis of a corpus of L1 and L2 English and Spanish acquisition data by children and adults: formal learning, nature of the input, and the age factor, PRINCIPAL INVESTIGATOR: R. Fernández Fuertes (University of Valladolid, Spain)
- 2006-2008 Regional Government of Castile and León (Spain) [VA046A06], Languages in contact (English/Spanish) in the context of Castile and León: first and second language acquisition, PRINCIPAL INVESTIGATOR: R. Fernández Fuertes (University of Valladolid, Spain)
- 2002-2005 Spanish Ministry of Science and Technology and ERDF [BFF2002-00442], Linguistic theory and the analysis of bilingual systems: a longitudinal study of the simultaneous acquisition of English and Spanish, PRINCIPAL INVESTIGATOR: R. Fernández Fuertes (University of Valladolid, Spain)
- 2002-2003 Regional Government of Castile and León (Spain) [UV 30/02], Strategies for language teaching and teacher training: theoretical and practical study of the linguistic production of English/Spanish bilingual twins, PRINCIPAL INVESTIGATOR: R. Fernández Fuertes (University of Valladolid, Spain)