"are voluminous.Bermudez-Otero describes noun plurals, which in Spanish usually consist of an -ssuffix; a few singular nouns also end in /s/, and the question is how nativespeakers analyze such forms as stems which happen to end in /s/, or as stemswhich take the plural -s suffix, but are treated as singulars--and are thereforedeponent, in the extended sense of this term." . . . .