Shiavault - a Vault of Shia Islamic Books A Hundred and One Rules in Arabic Grammar! When it means “how many,” کَم =================================== When it means “how many,” کَم has to be followed by an indefinite noun, in the accusative case. Unlike English, it has to be singular. Arab grammarians call it a particle of "The Accusative of Distinction," or تَمييز. How many students are there in the class? کم طالِباً في الصفِّ؟ Previous Next