All four verbs are weak-final, yet their paradigms are not identical because their roots and forms differ.
PerfectActive imperfectActive participleImperative
دَعَايَدْعُودَاعٍاُدْعُ
رَضِيَيَرْضَىرَاضٍاِرْضَ
رَمَىيَرْمِيرَامٍاِرْمِ
تَلَقَّىيَتَلَقَّىمُتَلَقٍّتَلَقَّ
Final wāw in the imperfect of دَعَا, final yāʾ in رَمَى, and alif maqṣūrah in رَضِيَ and تَلَقَّى are different realizations conditioned by root and pattern.
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Defective Verbs: Six Iʿlāl Rules and Four Short Paradigms
All four verbs are weak-final, yet their paradigms are not identical because their roots and forms differ.
PerfectActive imperfectActive participleImperative
دَعَايَدْعُودَاعٍاُدْعُ
رَضِيَيَرْضَىرَاضٍاِرْضَ
رَمَىيَرْمِيرَامٍاِرْمِ
تَلَقَّىيَتَلَقَّىمُتَلَقٍّتَلَقَّ
Final wāw in the imperfect of دَعَا, final yāʾ in رَمَى, and alif maqṣūrah in رَضِيَ and تَلَقَّى are different realizations conditioned by root and pattern.