... be used either as Nouns, Adjectives, or Adverbs, the terminations *-o*, *-a*, *-e* being added to the participial endings as required. When used as nouns or adjectives, they of course take the sign of the Plural (*-j*) and of the Accusative (*-n*) when the construction of the ... — Esperanto Self-Taught with Phonetic Pronunciation • William W. Mann
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