Internal History
The Semitic languages changed a great deal between Proto-Semitic and the establishment of the Central Semitic languages, particularly in terms of grammar. Innovations of the Central Semitic languages — all maintained in Classical Arabic — include
- The conversion of the suffix-conjugated stative formation into a past tense.
- The conversion of the prefix-conjugated preterite-tense formation into a present tense.
- The elimination of other prefix-conjugated mood/aspect forms (e.g. a present tense formed by doubling the middle root, a perfect formed by infixing a /t/ after the first root consonant, probably a jussive formed by a stress shift) in favor of new moods formed by endings attached to the prefix-conjugation forms (e.g. -u for indicate, -a for subjunctive, no ending for jussive, -an or -anna for energetic).
- The development of an internal passive.
Read more about this topic: Arabic Language
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