Marker Choice with Patient-Voice Verbs

With a patient-voice verb, the affected or selected patient is the pivot. A common-noun patient takes ang, while a named patient takes si/sina. The actor is non-pivot: common-noun actors take ng, singular named actors take ni, and plural named actors take nina.

This is not formed by translating an English active sentence and swapping articles. The verb itself must belong to an established patient-voice family, and its voice agrees with the participant marking around it.

See why focus is not simple active versus passive for the larger structural contrast with English.

The basic patient-voice map

Patient voice is sometimes called object focus or pokus sa layon in traditional teaching. “Patient” or “undergoer” is more useful than English “object,” because the pivot is grammatically central even though it is affected rather than acting.

The patient pivot takes ang, si, or sina

In the first sentence, common-noun patient ang bulwagan is pivot. In the second, singular named patient si Mila is pivot. In the third, the contacted named group takes sina. The actor is non-pivot in every case: ng tagapangasiwa, ng nars, and ni Rosa.

A ng actor can be completely definite

English speakers often misread ng as an indefinite marker. Patient voice makes the problem obvious: the ng actor may be a known person or institution.

The context may contain one known director. Ng direktor is not “a director” by grammatical rule; it is the non-pivot actor. The patient pivot ang bakasyon ni Celia is highly identifiable through its possessor.

Named actor ni Mara is necessarily referential. The destination sa tanggapan remains oblique, and the identified conveyed item is the ang pivot.

A controlled comparison with actor voice

Actor-voice naghugas selects si Ramon. The patient is ng mga baso, readily interpreted as newly introduced. Patient-voice hinugasan selects ang mga baso, making that set the pivot, while the actor changes to ni Ramon.

The translations show a likely glasses/the glasses contrast, but neither ng nor ang is an article. A sufficiently rich modifier can make an actor-voice ng patient specific, and an ang phrase can be generic. Voice and discourse jointly shape the interpretation.

Patient voice is not the English passive

English passive promotes an object to subject, adds a form of be, uses a participle, and often omits the actor: “The glasses were washed.” Filipino patient voice is an ordinary member of a symmetrical voice system. It has its own aspect forms, normally uses predicate-first order, and freely expresses the actor as a core ng/ni/nina phrase.

The natural English translation is active even though ang pinto is the Filipino pivot. Translating mechanically as “The door was opened by Leo” gives the wrong impression that the construction is marked or actor-suppressing.

The ay construction is possible but marked:

This fronting is useful in (formal) exposition or for explicit topic continuity. It is not required by patient voice; predicate-first Binuksan ni Leo ang pinto... is neutral.

Specificity is strong but not absolute

Patient pivots in eventive clauses are commonly specific and identifiable. That makes patient voice natural when speakers are already tracking the affected item.

The relative description identifies the bag. The sentence is well suited to continuing a story about it.

An ang patient can nevertheless denote a kind in a generic or customary statement.

Ang kamote refers to the food kind, not one identifiable sweet potato. The actor is left general and unexpressed. This reinforces the core principle: ang marks the pivot; it does not guarantee English definiteness.

Aspect changes the verb, not the marker map

With the established bili patient-voice family, the patient remains pivot across aspect.

The surface form bibilhin shows that aspect formation can alter the stem-and-suffix shape. Learn each verb family rather than adding -in mechanically. Marker choice stays stable: ni Ana is actor and ang gamot is patient pivot.

Commands preserve patient-voice marking

Many ordinary instructions use patient voice because the item to be acted on is central.

The short actor pronoun mo belongs to the ng-form series and follows the predicate. Ang bintana is the patient pivot. English uses a silent “you,” but Filipino overtly marks the actor when needed.

Questions, negatives, and a short exchange

The answer chooses patient voice and marks the named actor with ni. The coordinated prepared items form the ang patient pivot.

Common Mistakes

Keeping si on the actor under patient voice

The actor changes from si Leo in actor voice to ni Leo in patient voice.

Leaving the patient under ng

Patient voice requires ang ulat in this clause.

Using ng before a personal-name actor

Ng is the common-noun form; ni is its personal-name counterpart here.

Changing markers without changing voice morphology

An actor-voice correction would instead be Nagbukas si Leo ng pinto. Voice and markers must be changed as a system.

Key Takeaways

Patient voice selects the affected participant as pivot: use ang for a common noun and si/sina for names. Mark the actor with common ng, personal ni/nina, or the corresponding ng-form pronoun. Locations and recipients normally remain sa/kay/kina phrases. Patient voice is an ordinary Filipino voice construction, not an English passive, and the verb's established morphology must match the participant markers.