Through examining all instances of the nontarget "be" before verbs in the written interlanguage of Chinese learners at different proficiency levels, the present study reveals that nontarget "be" performs different functions, and there is a function shift from low to high proficiency levels. At the lowest levels, "be"…

Morphological systems are constrained in how they interact with each other. One case that has been widely studied in the psycholinguistic literature is the avoidance of plurals inside compounds (e.g. *"rats eater" vs. "rat eater") in English and other languages, the so-called "plurals-in-compounds effect." Several…

Sentences containing plural numerical expressions (e.g., "two boys") can give rise to two interpretations (collective and distributive), arising from the fact that their representation admits of a part-whole structure. We present the results of a series of experiments designed to explore children's understanding of this distinction…

Two recent proposals link the use of nonagreeing "don't" to the Root Infinitive (RI) Stage. Guasti & Rizzi (2002) argue for a misset parameter involving how agreement is spelled out. Schütze (2010) proposes that Infl is underspecified in child language and that "do" surfaces to support the contracted clitic/affix…

This article provides experimental evidence for the claim in Hayes (2004) and McCarthy (1998) that language learners are biased to assume that morphological paradigms should be phonologically-uniform--that is, that derived words should retain all the phonological properties of their bases. The evidence comes from an artificial language…

In French, the acquisition of object clitics seems delayed, and omissions are documented. In this article, we look at the experimental paradigm traditionally used to elicit object clitics and propose a new elicitation procedure that is closer to how clitics are produced in spontaneous production. We show that under the proposed new experiment, the…

The present article examines the effect of variable input on the acquisition of plural morphology in two varieties of Spanish: Chilean Spanish, where the plural marker is sometimes omitted due to a phonological process of syllable final /s/ lenition, and Mexican Spanish (of Mexico City), with no such lenition process. The goal of the study is to…

English uses three types of generic NPs: bare plurals ("Lions are dangerous"), definite singulars ("The lion is dangerous"), and indefinite singulars ("A lion is dangerous"). These three NP types are not interchangeable: definite singulars and bare plurals can have generic reference at the NP-level, while indefinite singulars are compatible only…

The correct use of an affix, such as the English plural suffix, may reflect mastery of a morphological process, but it may also depend on children's syntactic, semantic, and phonological abilities. The present article reports a set of experiments in support of this latter view, specifically focusing on the importance of the phonological make-up of…

The study investigates whether advanced second language (L2) learners can extend beyond the grammatical properties of the first language (L1) to successfully acquire tense and aspect. We examine the acquisition of the semantics of the imperfective marker "te-iru" in Japanese by native speakers of Mandarin Chinese, a language that grammatically…

The literature generally assumes that object clitic omission is equally allowed in all child languages. In this paper we challenge this claim by means of an elicitation experiment carried out with children acquiring two closely related languages, Catalan and Spanish. Our results show that while omission is high in young Catalan-speaking children,…

Researchers have long debated the mechanisms underlying the learning of syntactic structure. Of significant interest has been the fact that passive constructions appear to be learned earlier in Sesotho than English. This paper provides a comprehensive, quantitative analysis of the passive input Sesotho-speaking children hear, how it differs from…

This paper examines two issues concerning nonagreeing "don't" in child English, e.g., "He don't fit". (1) Do children know that "don't" consists of auxiliary "do" plus sentential negation, or do they misanalyze it simply as negation? I argue that the former claim yields both empirical (distributional) and conceptual advantages, while the latter…

While L1 transfer and L2 learnability have been studied extensively in the domain of syntax and the syntax/semantics interface, purely semantic phenomena have received little attention in the L2 literature. This paper presents two experiments examining the relative scope assigned to disjunction and negation by English-speaking learners of Japanese…

This article presents the authors' comments on Nina Hyams' article, "The Acquisition of Inflection: A Parameter Setting Approach" (AIPSA). The article began as a 1986 presentation at the Boston University Conference on Language Development (BUCLD). Parts of it were also presented at the 4th Eastern States Conference on Linguistics (ESCOL) in 1987…