noun
The Arabic active participle is a noun that comes from a verb. The newly-formed noun indicates a doer or the person who is performing a specific action. In English, endings like “-er” create the active participle, turning verbs like “sing” and “write” into nouns like “singer” and “writer.” In Arabic, the pattern used to turn a root or a verb into an active participle depends on which form the root is in. Typically, the active participle in Arabic is formed using the prefix “mu-” or مُ. For instance, a Form VIII word would follow this pattern: مُفْتَعِل.
The Magnetized Man 