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Chapter 29
Doubled verbs (mediae
geminatae) and
quadriliteral verbs
29.1 A doubled verb in Arabic, َأْل ِفـ ْع ُل ْلـ ُمـ َضا َع ُف, is a triliteral verb
whose second and third radicals are identical. In the basic form they arethus written as one, with sˇaddah above. This phenomenon is calledِإ ْد َغا ٌم, ‘contraction’, e.g.
29.2 The imperfect and imperativeThe imperfect tense is vocalized in the same way as the imperfect ofthe regular triliteral verb, which can have any of the three vowels on themiddle radical. The vowel is transferred between the first and secondradical in doubled verbs.The last consonant of the imperative of the second person masculinesingular has fath
̇ah, and not suku ̄n like the regular verbs. Anotherdifference is that the imperative does not have the initial
alif withhamzah, which is prefixed to the imperative in regular verbs, e.g.رََّمـ marra (for:َم َر َر marara)
to passرََّفـ farra (for:َف َر َر farara)
to escape, to fleeلَّ َد dalla (for: َدَل َل dalala)
to showدََّع^
adda (for: َع َد َد
adada)to count