PluralDualSingularGroup
يَفْعُلُونَيَفْعُلَانِيَفْعُلُMasculine Ghaa'ib
يَفْعُلْنَتَفْعُلَانِتَفْعُلُFeminine Ghaa'ib
تَفْعُلُونَتَفْعُلَانِتَفْعُلُMasculine Haadhir
تَفْعُلْنَتَفْعُلَانِتَفْعُلِينَFeminine Haadhir
نَفْعُلُ—أَفْعُلُMutakallim
Do not try to memorize every form in one pass. First notice the prefixes and the different endings.