Twenty years ago, a state-of-the-art review in "SSLA" marked the coming of age of the study of temporality in second language acquisition. This was followed by three monographs on tense and aspect the next year. This article presents a state-of-the-scholarship review of the last 20 years of research addressing the aspect hypothesis (AH)…

This article proposes a novel account for the overuse of free morphemes and underuse of bound morphemes in English as a second language (L2) based on the framework of Distributed Morphology. It will be argued that an Economy Principle 'Do everything in Narrow Syntax (DENS)' operates in the L2 learner's computational system. Consequently,…

This paper investigates a number of issues regarding negative polarity items (NPIs henceforth), the scope of negation and other negative elements in Turkish. First, based on new data, I argue that the distribution of the adverbial NPI "sakin" 'ever' is not as restricted as it was claimed in previous work (cf. Kelepir 2000, 2001). That's,…

Early research on the Aspect Hypothesis yielded a rigid developmental sequence for the acquisition of grammatical aspect, in which developing L2 learners applied morphemes to mark aspect in accordance with the inherent lexical aspect of verbal prototypes. While studies from a variety of L2 backgrounds have amassed evidence for this hypothesis,…

In two self-paced, sentence-by-sentence reading experiments, we examined the difference in the processing of Spanish discourses containing overt and null pronouns. In both experiments, antecedents appeared in a single phrase ("John met Mary") or in a conjoined phrase ("John and Mary met"). In Experiment 1, we compared reading…

One of the most challenging, but rather interesting, topics in the literature of Arabic phonology and morphology is the broken plurals (BP). The most widely acceptable account of Arabic BP, as far as I know, is McCarthy (1982) within the framework of Autosegmental Phonology. This paper presents and discusses the model of McCarthy (1982) and shows…

In this paper, we try to see how insights from morphology and grammaticalisation can be combined. Two approaches to the semantics of inflectional affixes are contrasted. According to one, affixes have no meaning, according to another, affixes have meaning just like lexical items. Given insights from grammaticalisation, a middle way, associated…

This essay contributes to the research on the emergence of tense/aspect morphology by reviewing the results and task conditions of studies supporting either the Aspect Hypothesis (AH) or the Default Past Tense Hypothesis (DPTH) for second language (L2) learners of Spanish. The AH has found that past marking emerges based on inherent aspectual…

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 represents the first attempt to formulate a hypothetical sequence for German case acquisition by Dutch-speaking learners on the basis of Processability Theory (PT). It will be argued that case forms emerge corresponding to a development from lexical over phrasal to interphrasal morphemes. This development, however, is subject to a…

Haznedar (2007) argues that longitudinal data from a child learner of English who has Turkish as a first language (L1) constitute a counterexample to the Aspect Hypothesis. In this commentary, we show that her argument is not warranted because the Aspect Hypothesis does not presuppose that tense is defective, contra her claim. However, Haznedar's…

While affix ordering often reflects general syntactic or semantic principles, it can also be arbitrary or variable. This article develops a theory of morpheme ordering based on local morphotactic restrictions encoded as weighted bigram constraints. I examine the formal properties of morphotactic systems, including arbitrariness, nontransitivity,…

In this essay, I apply current linguistic theory to reanalyze earlier research on the acquisition of "ser" and "estar" (e.g., VanPatten 1985, 1987). Using insights from Roby and Schmitt ("Semi-Copulas"), for example, I argue that the acquisition of the copular verbs is an issue of the acquisition of their aspectual properties (see also Bruhn de…

Sentence position and word length have been claimed to contribute to the perceptual salience of words. The perceptual salience of words in turn is said to predict L2 developmental sequences. Data for such claims come from sentence repetition tasks that required perceptual re-encoding of input and that did not control for focal accent. We used a…

The Cognition Hypothesis (Robinson 2005) claims that pedagogic tasks should be sequenced for learners in an order of increasing cognitive complexity, and that along resource-directing dimensions of task demands increasing effort at conceptualization promotes more complex and grammaticized second language (L2) speech production. This article…