Types of harf: amil and ghayr amil
أَنْوَاعُ الْحَرْفtypes of harf - particle types
Learn the two useful particle categories: amil and ghayr amil.
Simple explanation
A useful first classification is whether a حَرْف (harf) is عَامِل (amil) or غَيْر عَامِل (ghayr 'amil).