Guttural R
Many Jewish immigrants to Israel spoke a variety of Arabic in their countries of origin and pronounced the Hebrew rhotic as an alveolar tap , similar to Arabic '. Gradually, many of them began pronouncing their Hebrew rhotic as a voiced uvular fricative , a sound similar or (depending on the Arabic dialect) identical to Arabic '. However, in modern Sephardic and Mizrahi poetry and folk music an alveolar rhotic continues to be used.
Biblical Hebrew
Broken plural forms in Arabic are declined like singulars, and often take singular agreement as well. Dual and "strong plural" forms use endings with a long vowel or diphthong, declined in only two cases: nominative and objective (combination accusative/genitive), with the objective form often becoming the default one after the loss of case endings. Both Hebrew and Arabic had a special form of nunation/mimation that co-occurred with the dual and masculine sound plural endings whenever the noun was not in the construct state. The endings were evidently felt as an inherent part of the ending and, as a result, are still used. Examples are Arabic strong masculine plural "-ūna" (nominative), "-īna" (objective), and dual endings "-āni" (nominative), "-ayni" (objective); corresponding construct-state endings are "-ū, -ī" (strong masculine plural), "-ā, -ay" (dual). (The strong feminine endings in Classical Arabic are "-ātu" nominative, "-āti" objective, marked with a singular-style "-n" nunation in the indefinite state only.)