The acquisition of morphosyntax presents challenges for learners of all second/foreign languages. This cross-sectional study investigated English-speaking learners' morphosyntactic accuracy in the symmetrical subject-verb agreement type (in subject-initial sentences) and in the asymmetrical subject-verb agreement type (in verb-initial sentences)…

Second language acquisition research on the immersion context has focused primarily on study abroad, revealing the extent to which that context promotes learners' developing linguistic and intercultural competence. However, little research has examined linguistic development in intensive, domestic immersion contexts. This study investigated the…