Linguistics - Arabic

Overview

Numerals are concatenated from left to right (opposite to the letters), e.g. 534 = ٥٣٤.

Adaptation of the Number to the Counted Noun
Numbers 1-19 adopt the gender of the noun.
Adaptation of the Counted Noun to the Number
In classical Arabic, number 1 is followed by the noun in nominative singular, 2 by the noun in nominative dual (the numeral 2 may be omitted), 3-10 by the noun in genitive plural, 11-99 by the noun in accusative singular, and 100 and higher by the noun in genitive singular. In colloquial Arabic, the noun is unchanged after all numbers.
Comments on the Grammar
Flexion is done either by suffixes (regular) or by adaptation of the word stem (broken). The dual is always regular with suffix "-āni". Declension is done through vocalization, accusative as "-ân", genitive as "-în", which is only spelled out for words ending in a consonant which then append an additional letter "alaf" that carries the vowel.
Note: The numbers 3-19 have a feminine ending in the masculine form, and vice versa.