Arabic verbs follow predictable patterns. Learning these patterns unlocks thousands of words!

**Form I (فَعَلَ)** - Basic meaning

عَلِمَ = he knew

**Form II (فَعَّلَ)** - Intensive/Causative

عَلَّمَ = he taught (caused to know)

**Form III (فَاعَلَ)** - Mutual action

قَاتَلَ = he fought (mutual killing attempt)

**Form IV (أَفْعَلَ)** - Causative

أَنزَلَ = he sent down (caused to descend)