UC Davis

– While research on second language (L2) tense-aspect acquisition has flourished, most studies have focused on lexical aspect as an explanatory variable (Bardovi-Harlig and Comajoan-Colomé 2020). However, the role of the features of first language (L1) production in L2 Spanish preterit-imperfect acquisition has never been tested before. Prior research has found that the frequency and distinctiveness of verb forms in corpora of L1 English production predict L2 English learners’ tense-aspect production (Wulff et al. 2009). The present study aims to replicate these findings and test the predictions of hypotheses of L2 tense-aspect acquisition in another group of learners: English-dominant, instructed Spanish learners. Analyses were performed on longitudinal data from the Corpus of Written Spanish of L2 and Heritage Speakers (COWS-L2H; Yamada et al. 2020) and cross-sectional data from the Corpus Escrito del Español L2 (CEDEL2; Lozano 2021). Results indicate that L1 verb frequency and distinctiveness predict learners’ emergent use of the preterit and the imperfect.