Tombonuwo (Tambonuo) is a Paitanic language spoken in the Pitas and Labuk-Sugut Districts of northwest Sabah, Malaysia.
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The phonemes are voiceless. All other expressions are voiced.
is often pronounced as unrounded .
is neutralized to in a pre-stressed syllable.
Sabahan languages are characterized by "focus" morphology, which marks a syntactic relationship between the predicate of a clause and the "focused" noun phrase of the clause (see Austronesian alignment).
Tombonuwo has four focus categories, conventionally labelled "actor", "patient", "referent" and "theme". Focus is marked by affixation on the verb.
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The only marked tense in Tombonuwo is past tense.
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