An Investigation of the Acquisition Order of Persian Voices by Speakers of Other Languagess

According to Krashen’s Natural Order Hypothesis (1982), the grammatical structures of second languages are acquired in a pre-determined natural order. Previous research studies have corroborated the stages during acquisition of some grammatical structures of second languages. In an attempt to explore the acquisition order of Persian voices by speakers of other languages, the researcher designed 15 pairs of paraphrases and distributed them among the participants at different linguistic levels. The participants were asked to select sample sentences they had learned and used first regardless of the order present in their textbooks. The data were analyzed in terms of those obtained by examining Persian-acquiring children. Analysis of data showed that like Persian-acquiring children, almost all speakers of other languages acquire active voice structure first in order.