Arabic Verb Forms

Structures of Perfective Verbs with Triliteral Roots

(Active Voice)

No additional letters

Form I

fa“al(a)

فَعَلَ

fa“il(a)

فَعِلَ

fa“ul(a)

فَعُلَ

1 additional letter

Form II

fa““al(a)

فَعَّلَ

Form III

faa“al(a)

فَاْعَلَ

Form IV

‘af”al(a)

أَفْعَلَ

2 additional letters

Form V

tafa”“al(a)

تَفَعَّلَ

Form VI

tafaa“al(a)

تَفَاْعَلَ

Form VII

‘infa“al(a)

اِنْفَعَلَ

Form VIII

‘ifta“al(a)

اِفْتَعَلَ

Form IX

‘if”all(a)

اِفْعَلََّ

3 additional letters

Form X

‘istaf”al(a)

اِسْتَفْعَلَ

Form XI

‘if”aall(a)

اِفْعَاْلَّ

Form XII

‘if”aw”al(a)

اِفْعَوْعَلَ

Form XIII

‘