The Basic Passive Rule

Conjugating the Passive Positive Past Tense (Maadhi Majhool)

Start with the basic active form:
فَعَلَ
To make the basic passive form, change the first two root vowels:

Passive vowelRoot position
DhammahFirst root letter
KasrahSecond root letter
Keep its corresponding stateThird root letter

Result:
فَعَلَ → فُعِلَ