Tagalog (and most Philippine languages) organizes its clauses around a voice or focus system rather than a simple active/passive split. The verb carries an affix that announces which participant is the grammatical topic, and that topic noun is flagged with the marker ang (or si for names). This tool lays out the four core voices side by side so you can see the affix, the ang-marked argument, and a worked example for each.
Why the focus system is different from passive voice
English learners who encounter Tagalog often reach for the analogy: “object focus is like English passive, because the object becomes the grammatical subject.” The analogy captures something real, but it breaks down quickly.
English has two voices: active (“The man bought rice”) and passive (“Rice was bought by the man”). In the passive, the agent is demoted to an optional by-phrase. In Tagalog’s object focus, the agent is still obligatory and is marked with ng — nothing is demoted. What changes is which participant receives the grammatical spotlight (the ang-phrase), not who is present in the clause. Tagalog is better described as having four voices, each foregrounding a different participant, without any of them being a “passive” in the English sense.
The four voices
A Tagalog clause has one privileged argument — the ang-phrase (topic or focus). The verb’s affix selects which semantic role that argument plays:
| Voice | Key affix | ang-marked argument | Example root |
|---|---|---|---|
| Actor focus | -um- / mag- | The doer | bumili (bought, buyer is topic) |
| Object focus | -in | The thing acted on | bilhin (to buy, goods are topic) |
| Locative focus | -an | The location or goal | bilhan (the place of buying is topic) |
| Beneficiary focus | i- | The beneficiary | ibili (to buy for, beneficiary is topic) |
Non-focused arguments take different markers: the non-focused actor takes ng, and a non-focused location takes sa. Shifting the affix shifts the markers on all surrounding nouns.
Worked example: luto (cook)
The same basic action — a man cooking adobo for a child — takes four different forms depending on which participant is the ang-topic:
Actor focus (mag-):
Nagluto ang lalaki ng adobo para sa bata.
Literal: “Cooked the man adobo for the child.”
The man (lalaki) is ang. The food and the child are ng/sa-marked.
Object focus (-in):
Niluto ng lalaki ang adobo para sa bata.
Literal: “Cooked by-the-man the adobo for the child.”
The adobo is now ang. The man becomes ng.
Locative focus (-an):
Nilutuan ng lalaki ang bata ng adobo.
This form shifts focus to the person receiving (here used locatively for “cook for someone at a location”).
The child (bata) becomes ang.
Beneficiary focus (i-):
Ipinagluto ng lalaki ang bata ng adobo.
The child (bata) is ang as the explicit beneficiary.
The man is ng; the food is also ng.
The action is identical in all four; only the spotlighted participant shifts.
Aspect interacts with voice
Tagalog verbs also mark aspect — roughly, whether an action is contemplated (not yet begun), begun (started but not finished), or completed. Aspect is layered on top of voice through reduplication and the realis marker n-/-in-. That is why the same root produces many surface forms: magluto (actor, contemplated), nagluto (actor, completed), nagluluto (actor, progressive). The voice system selects the participant; the aspect system marks the timeline.
Tips for learners
- When reading a Tagalog clause, find the ang-phrase first — that is the grammatical topic.
- Then look at the verb affix to understand what role the topic plays (the doer? the thing acted on? the location? the beneficiary?).
- Remember that
ngon a noun does NOT mean it is unimportant — it is often the actor. The actor is not always ang.