A lafīf verb has two weak root consonants. In mafrūq they are separated (radicals one and three); in maqrūn they are adjacent.
ClassRootLayoutExample
Mafrūqو ق يwāw — qāf — yāʾوَقَى يَقِي
Maqrūnط و يṭāʾ — wāw — yāʾطَوَى يَطْوِي
In وَقَى, qāf separates the weak radicals. The complete classification explains why this verb exhibits both initial-wāw loss and final-yāʾ changes.
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Complete Paradigm of the Separated Doubly Weak Verb وَقَى يَقِي
A lafīf verb has two weak root consonants. In mafrūq they are separated (radicals one and three); in maqrūn they are adjacent.
ClassRootLayoutExample
Mafrūqو ق يwāw — qāf — yāʾوَقَى يَقِي
Maqrūnط و يṭāʾ — wāw — yāʾطَوَى يَطْوِي
In وَقَى, qāf separates the weak radicals. The complete classification explains why this verb exhibits both initial-wāw loss and final-yāʾ changes.