Tone may or may not be represented in the orthography of Keresan. When represented, four diacritics may be used above the vowel. Unlike the system used for Navajo, diacritics for tone are not repeated in long vowels. Keres alphabet and alphabetical order Although Keresan is not normally written, there exists only one dictionary of the language in which words are listed in any given order. In this dictionary of Western Keres, digraphs count as single letters, although ejective consonants are not listed separately; occurring after their non-ejective counterparts. The glottal stop ⟨ʼ⟩ and long vowels (e.g. ⟨aa ee ii⟩ etc.) are not treated as separate letters. Sample texts Orthography marking tone Woodpecker and Coyote ⟨Ái dítʼîishu srbígà kʼánâaya dyáʼâʼu. Shʼée srbígà ái dyěitsị ái náyáa shdyɨ dyáʼa.⟩ / ɑ́ì títʼîːʃù ʂpíkɑ̀ kʼɑ́nɑ̂ːjɑ̀ cɑ́ʔɑ̂ʔù | ʃʼéː ʂpíkɑ̀ ɑ́ì cěǐtsʰi̥ ɑ́ì nɑ́jɑ́ː ʃcɨ̀ cɑ́ʔɑ̀ / Orthography without tone marking Boas text Baanaʼa, egu kauʼseeʼe, atsi sʼaama-ee srayutse. Morphosyntax Keresan is a split-ergative language in which verbs denoting states (i.e. stative verbs) behave differently from those indexing actions, especially in terms of the person affixes they take. This system of argument marking is based on a split-intransitive pattern, in which subjects are marked differently if they are perceived as actors than from when they are perceived as undergoers of the action being described. The morphology of Keresan is mostly prefixing, although suffixes and reduplication also occur. Keresan distinguishes nouns, verbs, numerals and particles as word classes. Nouns in Keresan do not normally distinguish case or number, but they can be inflected for possession, with distinct constructions for alienable and inalienable possession. Other than possession, Keresan nouns show no comprehensive noun classes. Word order Keresan is a verb-final language, though word order is rather flexible. Laguna Keres: Negation Negation is doubly marked in Keresan. In addition to the adverb dzaadi, verbs index negation through a suffix (e.g. -u). Gukacha 'S/he saw her/him' Dzaadi gukachau 'S/he didn't see her/him' Verbal morphology The verb is a central grammatical category in Keres, conveying the most information about events in communicative acts. Through its morphemes, Keresan verbs code not only person and number of the initiator of the action (e.g. “Tammy drinks decaf”) as is common in Indo-European languages, but also how the initiator is implicated in the action. For instance, the three verbs that describe Tammy's actions in “Tammy kicked the ball” vs. “Tammy jumped” vs. “Tammy