Maricopa (Yuman)

Mismatch: morphosyntax: verbal number

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Stems mark verbal number is marked by various morphological means (prefixation, suffixation and/or ablaut, depending on the root). In some cases, the same morphology marks dual for one root and plural for another, so that, arguably, these patterns represent a morphological reversal. The particular morphological configurations in question are:

a.		uu‑	root
b.		uu‑	root + ablaut
c.			root + ablaut
d.	t/sh‑	uu‑	root + ablaut
e.	t/sh‑		root + ablaut	‑sh

(pp. 91-92)

For example, the prefix uu- forms the plural in 'call' but the dual in 'climb':

singular	dual	plural
qaas-	qaassh-	uu-qaas-	'call'
kuly-	uu-kuly-	ashuukly-	'climb'

while ablaut marks the plural in 'breathe' and the dual in 'die':

singular	dual	plural
uuyey-	uuyesh-	uyay-	'breathe'
puy-	pooy-	uupooy-	'die'

Note that in the case of 'die', both dual and plural are formed by morphological operations which are not unique to either number (dual = root ablaut, plural = u + root ablaut).

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References

Gordon, Lynn. 1986. Maricopa morphology and syntax. University of California Publications in Linguistics 108. Berkeley: University of California Press.