reference form for the said verb with all its various forms, َكـ َتـ َب kataba is
conventionally translated by the English infinitive ‘to write’.
14.3 Root and radicals
Most of the Arabic basic verb forms consist of three consonants
(radicals) and three vowels (CVCVCV). The three consonants constitute
the root of the verb, which is why they are called radicals (i.e. ‘root-
makers’). (Vowels cannot function as radicals.) It is important to know
and recognize the root of every verb, because the root is the absolute
(invariable) basis of all the different forms of the verb as well as of
most nouns, adjectives and adverbs and even many prepositions. In
Arabic dictionaries most words and word forms are therefore entered
alphabetically under the respective root.
Note: The abbreviation ‘C’ above denotes ‘consonant’ and ‘V’ denotes ‘vowel’.
14.4 Triliteral verbs
(a) Roots with three radicals are called triliteral verbs (singular:
ّثـ َلا ِثيَُأْل ِف ْع ُل ْلـ^
al-fi
lu t
̄
-t
̄
ula ̄t
̄
ı ̄). Thus the root of the triliteral verb
kataba ‘to write’ is k-t-b. This is the form under which you will
find the verb kataba (and other forms of this verb) in Arabic
dictionaries.
(b) The triliteral verbs have three patterns of vowelling. In the basic
form the first and last consonants (radicals) are always vowelled
with fath
̇
ah /a/. But the middle consonant (radical) may be
vowelled with any of the three short vowels:
14.5 Separate personal pronouns for the subject and object are
usually not used in Arabic verbal sentences. Verbs are conjugated for the
CaCaCa CaCiCa CaCuCa
َكـ َتـ َب َشـ ِر َب َكـ ُبـ َر
kataba sˇariba kabura
he wrote he drank he grew up
79
Perfect
tense, root,
radicals,
triliteral
verbs, word
order