I figured I'd give my sketch some more substance. However, the language has undergone two sound changes since my previous post:
1. [+nasal +syllabic] > @~
2. a > ɛ, ɔ / if next syllable has stressed i, u
Clarification on a previous point: the vowel harmony rule happens only in prefixed morphemes, never suffixed ones.
When giving underlying forms I will use /p t k s m n r ' a i u/ and usually retain the slashes. But in actual examples, I will spell out the R-lenited phones [ʋ ɾ ɰ ɦ] with v r g h, omit /r/ and /'/ when represented on the surface only by zero, and otherwise retain simple phonemic spelling. But in bold typeface.
Capital V will continue to indicate a harmonizing vowel. Capital A will also be used to indicate an agreement vowel (see below).
Thus, with the example word previously given as /kʔipRis/, we will represent the underlying form with /k'Vpris/ and the actual resulting word with k'ivis.
There are three "genders" which have no particular semantics, they are simply a matter of what the noun's tonic vowel is. For instance nouns with a tonic vowel of /i/ are in the I-gender. Adjectives, numbers, and verbs always agree with the gender of their head nouns or their subjects by suffixing a copy of this gender vowel.
II. Number etc.
The plural suffix is strictly required whenever the noun refers to multiple things. The diminutive suffix is optional and possible only in the singular; it indicates smallness, cuteness, or intimate relationship to the speaker, and is heavily employed. Much less common is an augmentative -ua that is also possible only in the singular and indicates bigness, dumbness, or clumsiness; the final /a/ becomes A in the genitive.
Case is essentially derivational, as it is not used for distinguishing the grammatical roles of subject and direct object (or other such roles), but only for genitives and obliques. Essentially, all nouns functioning as nouns are in the unmarked or direct case, while the genitive case derives adjectives (and non-head compound elements) from the base noun and the oblique case derives adverbs. Note that the genitive and oblique cases are not used in prepositional phrases, and do not necessarily occur in all noun uses that might be called genitive or oblique.
Full table of forms for /ni'ik/, "cat"
Genitive- (assuming an A-gender head)
Genitive pronouns are formed regularly, but the -A suffix replaces final -a in the plural pronouns.
Oblique pronouns also use the same suffix nouns do, but in a more fusional manner:
Gender: The tonic vowels and thus grammatical genders of first, second, and third person pronouns are U, A, and I respectively.
When used attributively, adjectives inflect only to agree with the noun's gender. This works just like the genitive suffix, and indeed genitive nouns are morphologically identical to attributive adjectives. When used predicatively, adjectives do not inflect at all - they appear in their bare forms. However, genitive nouns remain in the genitive case in both attributive and predicative uses.
The Basic Conjugation
The basic conjugation distinguishes only past and present tenses (specifically, preterite and present-progressive), singular and plural number, and an agreement vowel. The basis of the system works like this:
Sg. -An, -A
Pl. -A, -Ak
Exception: the second-person singular suffixes do not match the others, and instead match the second-person plural suffixes, in both tenses.
Following is a full table of the basic conjugation for the verb /misit/, "to see". Keep in mind that personal pronouns have their own genders, so all suffix vowels in the table are just regular gender agreement. (Third-person pronouns of course have the I-gender, but nominal subjects can be of any gender so we cannot just give /i/ for the third person.)
There are additional conjugation patterns for more complex tenses (future, past-continuous, perfect, and immediate/punctual) and for the optative and hypothetical moods. These patterns are all related to the basic conjugation, but not always in transparent ways.
Other Verb Morphology
1. Passive verbs are derived from active ones by an infix, -n-, whose position is more dependent on prosody than on morpheme boundaries: when possible, it becomes a coda of the stressed syllable. For instance, in a bare root of CVCVC, V1 usually bears stress, so the passive form is CVnCVC. This infixation is blocked in some less-common root shapes; in such cases it may instead be prefixed. A few verb roots already have a medial consonant cluster starting with /n/ - most of these historical nasals have been analogized away in the active voice, but some remain, forming a small class of deponent verbs.
2. There exist also a substantial number of derivational prefixes that may be found at the beginnings of verbs.