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A Derivational Account for Sorani Kurdish Passives

01/2011;

ABSTRACT In this paper we propose a new analysis for Sorani Kurdish passive formation. We ar-gue that passivisation in Sorani Kurdish actually is a derivational process and propose four arguments supporting this claim. Within lexicalist approaches to morphosyntax, the question whether to treat passivisation as an inflectional or a derivational process has often been raised. The traditional treatment of passive considers it to be an inflectional process. This traditional view is followed by certain number of recent studies (Stump, 2006; Hippisley, 2007) that presuppose the existence of one single paradigm for both the active and the passive verb forms of a given lexeme. On the other hand, (Sadler and Spencer, 1998) claim a derivational analysis of passives while (Bresnan, 1982) states that passives may serve as an input for derivational processes. If one accepts that inflected forms cannot function as an input for derivational processes, (Bresnan, 1982) inevitably entails a derivational treatment of passivisation. (Blevins, 2003) proposes a treat-ment for passives as a morphological process called Passive Lexical Rule (PLR) applicable to a whole series of languages. (Sag et al., 2003) argue that the argument-structure-changing operation triggered by passivisation are evidence for a derivational analysis for passives. Others, like (Kiparsky, 2005) do not explicitly choose between the two approaches. Yet the data Kiparsky presents for Latin rather favours a derivational analysis. Usually, deriva-tion is said to operate semantic change in an unpredictable way: as opposed to inflectional processes, given one derivational process, there is not necessarily one unique predictable se-mantic change that systematically occurs. Based on data from Latin, (Kiparsky, 2005) shows that morphological passive forms may have several distinct values, not only syntactic passive value. These values are lexically specified, i.e. not directly predictable. In this paper we analyse the morphological passive of the Western Iranian language So-rani Kurdish. We use the more common name Sorani to refer to its standardised dialect, corresponding to what (Haig, 2010) refers to as Suleimani. Sorani mainly distinguishes it-self through its verbal morphology and its intricate system of "endoclitic" person markers (Samvelian, 2007). Sorani verb forms roughly consist of a set of prefixes and suffixes clus-tered around a given stem (cf. Table 2). Most traditional descriptions of Sorani morphology concur in stating the existence of two distinct verbal stems: one for the present tense forms and one for the past and non-finite forms. Clustered around these stems, prefixes mostly con-vey tense, aspect and mood (TAM) and polarity features, whereas suffixes may encode TAM and person information. Sorani also displays three sets of personal endings (Table 1): PE1 for the present verb and the perfect subjunctive , PE2 for imperfective, preterite and past perfect forms and PE3 for the remaining perfect forms. In past tenses, Sorani verbs display remnant features of split ergativity (Haig, 2010): if a verb is transitive, the normal person markers are replaced with the endoclitic person markers as subject-verb agreement markers in the past tenses. They are inserted in verb-internal second position (Samvelian, 2007). Passives are formed by inserting the sequence –rê/–râ between the stem and the other suffixes (shaded column in Table 2). Descriptive grammars implicitly present –rê/–râ as just another set of inflectional suffixes for transitive verbs (McCarus, 1958; MacKenzie, 1961; Blau, 2000; Thackston, 2006).

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    ABSTRACT: Non-canonical inflection (suppletion, deponency, heteroclisis, etc.) is extensively studied in theoretical approaches to morphology. However, these studies often lack practical implementations associated with large-scale lexica. Yet these are precisely the requirements for objective comparative studies on the complexity of morphological descriptions. We show how a model of inflectional morphology which can represent many non-canonical phenomena [67], as well as a formalisation and an implementation thereof can be used to evaluate the complexity of competing morphological descriptions. After illustrating the properties of the model with data about French, Latin, Italian, Persian and Sorani Kurdish verbs and about noun classes from Croatian and Slovak we expose experiments conducted on the complexity of four competing descriptions of French verbal inflection. The complexity is evaluated using the information-theoretic concept of description length. We show that the new concepts introduced in the model by [67] enable reducing the complexity of morphological descriptions w.r.t. both traditional or more recent models.
    Systems and Frameworks for Computational Morphology - Second International Workshop, SFCM 2011, Zurich, Switzerland, August 26, 2011. Proceedings; 01/2011

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