Author: [Generated for academic purposes] Affiliation: Institute of Linguistics and Altaic Studies Date: April 15, 2026 Abstract This paper investigates the grammatical and prosodic strategies used to encode information focus in the Heleer variety of Mongolian, a colloquial register spoken in central and eastern Mongolia. While standard Mongolian (Khalkha) utilizes word order variations, focus particles (e.g., l , ch ), and intonational prominence, Heleer exhibits unique reductions in case marking and increased reliance on prosodic highlighting. Using corpus data from spontaneous speech and controlled elicitation tasks with 20 native speakers, this study identifies three primary focus-marking devices: (1) preverbal placement of focused constituents, (2) use of the clitic =l as an exhaustive focus marker, and (3) a distinctive L+H* pitch accent on the focused word. The findings suggest that Heleer represents an intermediate stage between rigid SOV focus structure and more discourse-configurational systems, with implications for Altaic typology.

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In 78% of narrow focus responses in Heleer , accusative case was absent when the object was focused preverbally, compared to 12% in Khalkha. The clitic =l functions as an exhaustive focus marker in both varieties. However, in Heleer , =l attaches more frequently to non-subject arguments and can even follow a dropped case marker:

Focus, Mongolian, Heleer, information structure, prosody, Altaic languages 1. Introduction Information focus — the linguistic means by which a speaker highlights new or contrastive information — varies significantly across languages. In Mongolian, a head-final, agglutinative language of the Mongolic family, focus interacts intricately with syntax, morphology, and intonation. The standard Khalkha dialect uses a combination of preverbal positioning, focus particles, and pitch accent. However, the Heleer register (often described as “colloquial,” “fast speech,” or “rural” Mongolian) shows systematic divergences.

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: Bi nom-iig unsh-sun. I book-ACC read-PAST ‘I read a book.’ (neutral)

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: Nom=l unsh-sun book=FOC read-PAST ‘I read a BOOK (and nothing else).’

: Bi nom unsh-sun [nom focused, -iig dropped] I book read-PAST ‘I read a BOOK’ (not a magazine)

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