This study explored how the first language (L1) influences discourse marker use in second language (L2) speech. Some studies (e.g., Liu, 2013; Sankoff et al., 1997) have addressed the issue of L1 transfer of discourse markers in L2 speech, suggesting that non-native speakers' L1 use may influence the frequency and usage of English discourse…

Language learners are underserved if there are unlearned meanings of a word that they think they have already learned. For example, "circle" as a noun is well known, whereas its use as a verb is not. For artificial-intelligence-based support systems for learning vocabulary, assessing each learner's knowledge of such atypical but common…