The FerFuLice corpus (Fernández Fuertes and Liceras 2009) contains the spontaneous production of two English/Spanish bilingual twins for a period of almost 6 years (1;01-6;11). It is completely transcribed in the CHAT system and it is available in the CHILDES project (MacWhinney 2000).

Funding: Spanish Ministry of Education and Science [BFF2002-00442], Spanish Ministry of Science and Innovation [HUM2007-62213], Regional Government of Castile and Leon [VA046A06; and UV 30/02].