of the root which disappears or remains. This affix is used when it is necessary to make a normally transitive verb, a verb that commonly occurs with -en, -an or i-, intransitive for syntactic reasons. These verbs will take mang- in such instances. Ma- There are few verbs with active meaning that use this prefix. Some of these are maturog (<turog), to sleep, mapan (<pan), to go, magna (<pagna irregular formation), to walk. Because of the semantics of these roots, they cannot take a direct object. In the continuous progressive form, the prefix participates in reduplication taking the first consonant as its final, unlike the other verbal prefixes. Lastly, ma- is similar in form to the ma- potentive. They differ in terms of the series of pronouns they are able to take: ma- (agent) take -ak pronouns; ma- (potentives) take -ko. Patient Focus: -En Verbs cast in this focus throw emphasis on the patient of the verb, in other words, the direct object. Because of this, the misnomer "passive voice" has been applied to verbs in the patient focus. Agents (or actors) for verbs cast in the true passive voice can be omitted. The English sentence The car was repaired yesterday is grammatical without the agent of the verb. This cannot be said of verbs in the patient focus. Patient focus verbs require both the agent and the object argument for grammaticality. The sentence Tinarimaan ti mekaniko ti kotse is more grammatical than *Tinarimaan ti kotse which lacks an agent. Patients of verbs cast into this focus are definite. Both actor and patient are both marked by the core form of the article and deictives. For the pronouns, the ergative forms are used, in other words, the -ko series of pronouns. Since the core forms are used for both actor and patient, they are differentiated only by syntax: the actor follows after the verb as close as possible with the patient thereafter. If pronouns are used for both the actor and patient, a special set of pronouns are used. Consult the table of pronoun sequences for details. What can be considered the patient of an English verb, may be cast in a different theta role in Ilocano. Take for example, the English phrase The student saved the file. In this phrase, the file is the noun phrase in the patient role (the direct object). In Ilocano, however, the same noun