A verb whose past is on فَعَلَ does not have one automatic present-tense weight. Its present may be on:
● يَفْعَلُ — middle radical with fatḥah
● يَفْعِلُ — middle radical with kasrah
● يَفْعُلُ — middle radical with ḍammah
The established usage of Arabic tells us which present form belongs to each verb. Therefore, learn the past and present as a pair.