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8.Verb Stems

The verb stem is generally composed either of a consonant plus vowel or of a consonant plus vowel plus consonant. Variations in the final consonant and in the quality, pitch accent, and length of the stem vowel indicate differences in mode and aspect. Five modes are distinguished: the imperfective, perfective, progressive, iterative, and optative. In addition, four aspects may be distinguished: the momentaneous, continuative, repetitive, and semelfactive. No stem, however, has a distinct form for each of these modes and aspects. In the first place, most stems are conjugated only for the five modes and, of those that are conjugated for aspect, few distinguish between more then two aspectival forms. Secondly, many verbs have the same stem form in each conjugation. In general, then, the number of stem forms for any given verb rarely exceeds eight.

The stem variations are highly irregular and it will be impossible to list here all of the possible variations. A few examples will suffice to illustrate the commoner types. In the following examples, the stems are listed in this order: imperfective, perfective, progressive, iterative, and optative. Where variant forms for aspect are found, these are marked.


                                                 
imp.  perf.  prog.  iter.  opt. 
-'ah  -'ah  -'ah  - 'ah  -'ah  'to butcher' [-[- class, act.tr.]  
-t'ee  -t'ee  -t'eeł   -t'ee  - t'ee  'to handle a board-like object' [-[- class, act.tr.]  
-'aa  -'á   -'ááł   -'á   -'a  'a noise is heard'[zero class, act. intr.] 
-ká [mom.], -ka [cont.]  -ka  -kał   - ka  -ká   'several move' [zero class, act. intr.] 
-ghee [mom.],-gho [cont.]  -gho  - ghoł   -gho  - ghe  'to move quickly, to run' [-ł- class, act. intr.] 
-lé   -lá   -lééł   -   -lé [mom.], -la'[cont.]  'to handle a rope-like object' [zero class, act. tr.] 
-chiͅiͅ   -chaͅaͅ   -chiͅiͅł   -chiͅiͅ   -chiͅiͅ   "to defecate' [zero class, act. tr.] 
-tł'ó   - tł'óͅ   - tł'ół   - tł'ó   - tł'ó   'to tie, bind' [zero class, act. tr.] 
-'aa [mom.], -'á [cont.]  -áͅ   'ááł   -'á   -'aa  'to handle a round object' [zero class, act. tr.] 
-ghé   - ghíͅ   - ghééł   - ghé   - ghé   'to kill one' [-ł- class, act. tr.] 
-   - záͅ   - zééł   -   - za'   'a movement of people takes place' [zero class, act. intr.] 
-ghee [mom.], -ghé [cont.]  -ghí   ghééł   -ghé   -ghee  'to carry a burden' [zero class, act. tr.] 
-biͅiͅ [mom.], -biͅ' [cont.]  -báͅ   bíͅíͅł   -bíͅ   -bíͅ   'to win a game' [-ł-class, act. tr.] 
-tał   -tał   -tał   -tał   -tał   'to burst, explode' [-ł- class, act. intr.] 
-'oł   -'eel   -'oł   -'oł   -'oł   'to spread out' [-ł- class, act. tr.] 
-dees  -deez   -dis   -dis   -dees  'to singe' [- ł- class, act. tr.] 
-'eesh   -eezh   -'ish   -'ish   -'eesh  'to string beads'[zero class, act. tr.] 
-baał   -baal   -bał   -bał   -baał   'to hang suspended' [zero class, act. intr.] 
-baͅaͅs   - báͅáͅz   -baͅs   -baͅs   -baͅaͅs   'to become round' [zero class, act. intr.] 
-aash  - 'áázh   -'ash   - 'ash   -'aash  'two move' [zero class, act. intr.] 
-'eeł   - 'éél   -'oł   -'oł   -'eeł   'two move' [zero class, act. intr.] 
-'éés   -'eez   -'is   -'is   -'éés   'to step about' [-ł- class, act. intr.] 
-k'ash [mom.], -k'ash [cont.]  -k'aazh[mom.], -k'ash [cont.]  k'ash  -k'ash  -k'aash [mom.], -k'ash [cont.]  'to sharpen' [zero class, act. tr.] 
-'iͅiͅł   -'iͅiͅł   -'íͅíͅł   -'íͅíͅł   -'íͅíͅł   'to copulate' [zero class, act. tr.]