Shiavault - a Vault of Shia Islamic Books A Hundred and One Rules in Arabic Grammar! The Sick Verbs الافعال المعتلة ================================== Any verb that has a long vowel as one of the three radicals in its root is called a “sick verb.” These long vowels will go through a change when the verb is used in the present tense. Consequently, there are three types. a. Assimilated, if the first radical of the verb is a long vowel such as: ** ** وَصَلَ / يَصِلُ “to arrive.” b.
Hollow, when the second radical position is occupied by a long vowel such as: سارَ / يَسيرُ “to walk.” c. Defective, when the third radical position is occupied by a long vowel such as: ** دَعا / يَدعو** “to invite.” To check how these irregular verbs are conjugated to the various pronouns for both present & past tenses, please check the computer program at the website address given earlier. کـَلُّ ، بَعضُ are nouns and when used before another noun they create an Idaafa (a).