Research has shown that non-native background languages (L2s) can play an important role in the acquisition of an L3/L[subscript n]. However, only a few studies have focussed on positive transfer from an L2 to an L3/Ln in the context of multilingual language acquisition of Romance past tenses. The present study therefore analyses the acquisition…

Language learning is a complex issue of interest to linguists, computer scientists, and psychologists alike. While the different fields approach these questions at different levels of granularity, findings in one field profoundly affect how the others proceed. My dissertation examines the perceptual and linguistic generalizations regarding the…

This article examines the relationships between second language acquisition (SLA), instructed second language acquisition (ISLA), and language teaching by examining them from the lens of the research on the acquisition and teaching of second language (L2) tense-aspect in the last 20 years (2000-2021). Review 1 examines 56 instructional effect…

Chinese learners of English often experience difficulty with English tense presumably because their native language is tenseless. We showed that this difficulty relates to their incomplete conceptual representations for tense rather than their poor grammatical rule knowledge. Participants made acceptability judgments on sentences describing…

In the past, research on the cognitive neural mechanism of second language (L2) learners' processing time information has focused on Indo-European languages. It has also focused on the temporal category expressed by morphological changes. However, there has been a lack of research on L2 learners' various time coding means, especially for Mandarin,…

This study investigates the developmental trajectory of progressive construction among Chinese and Japanese EFL learners through a usage-based approach. A total of 600 written essays, produced by EFL learners from China and Japan with proficiency levels ranging from elementary to upper-intermediate, were analyzed. The findings reveal that advanced…

The present continuous tense can be problematic among L1 Thai learners due to the variation in contexts in which the tense can be used (Boonjoon, 2017; Khattiya, 2018; Kongthai, 2015). The present study aimed to examine the functional use of the English present continuous tense by L1 Thai learners under the theoretical framework of the…

When acquiring the English plural, children correctly produce plural words long before they develop an understanding of morphological structure. When acquiring Sesotho noun prefixes, children are aware of the multiple constraints governing variation from a young age. Both of these cases raise questions about the Shin and Miller (2022) account of…

A word often expresses many different morphological functions. Which part of a word contributes to which part of the overall meaning is not always clear, which raises the question as to how such functions are learned. While linguistic studies tacitly assume the co-occurrence of cues and outcomes to suffice in learning these functions (Baer-Henney,…

Pronunciation is a crucial component of language acquisition, vital for achieving clarity and fluency in communication. This study, utilizing cycles of action research, aimed to evaluate the impact of songs on the pronunciation skills of Thai EFL learners. Additionally, this study explored the participants' perceptions of using songs in their…

Knowledge of derivational affixes makes an important contribution to second language learners' success when reading. Yet while the effects of some learner variables (L2 proficiency, L1 background) have been investigated, there has been little research addressing the effects of varying characteristics of affixes on their acquisition. The goal of…

Counterfactuals are a type of conditional sentences used to convey situations that do not correspond to reality. Tense morphology is a core ingredient to encode counterfactuals in English and most Indo-European languages. Mandarin Chinese (hereafter Chinese) lacks tense morphology and does not require counterfactuals to be formally distinguished…

The growing body of teachers' cognition research suggests that language teachers' decisions about grammar teaching are influenced by what they know, think, and believe. While previous research highlights that learning the present perfect tense is challenging for foreign language learners, little research discussed teachers' beliefs about how these…

Convergent evidence suggests that, for bilingual learners, well-developed morphological awareness in the first or second language may facilitate second language reading comprehension. However, there may be important differences between types of morphological awareness which could affect the degree to which second language reading comprehension is…

This dissertation explores first language (L1) transfer and second language (L2) transfer processes and models, such as the full transfer/full access model (FT/FA), the representational deficit/interpretability hypothesis, and the feature reassembly hypothesis (FRH). The typological proximity model (TPM), the cumulative enhancement model (CEM),…