Aspect instead of tense

English asks 'when did it happen?' Tagalog asks 'what state is the action in?' Three aspects cover it:

AspectMeaningkain 'eat' example
Completed (perfective)the action is done — kumain 'ate'kumain
Ongoing (incompleted)happening now / habitually — kumakain 'is eating, eats'kumakain
Contemplatedhasn't begun — kakain 'will eat'kakain

Time words like kahapon 'yesterday' or bukas 'tomorrow' supply the calendar reading the verb itself doesn't carry.

Focus — the verb spotlights a noun

Tagalog verbs also change shape to say which role the ang-marked noun plays. If the actor is the focus, you use an actor-focus form (-um-, mag-); if the object is the focus, an object-focus form (-in) — and the actor moves into ng. English approximates this with active vs. passive, but Tagalog uses object-focus in ordinary, unmarked sentences.

TagalogFocusEnglish
Kumain ang bata ng isda.actor (the child)The child ate fish.
Kinain ng bata ang isda.object (the fish)The child ate the fish. / The fish was eaten by the child.
Gumagawa ang panadero ng tinapay.actor (the baker)The baker makes bread.
Binili ng nanay ko ang isda.object (the fish)My mother bought the fish.

Common verb shapes

Before the full map, take one verb end-to-end. The aspect column order below is always Completed / Ongoing or habitual / Contemplated:

AspectTagalog sentenceEnglish
CompletedKumain ako.I ate.
Ongoing or habitualKumakain ako.I'm eating / I eat.
ContemplatedKakain ako.I will eat.
Completed — non-actor focusKinain ko ang isda.I ate the fish.

Kinain ko ang isda: kinain = completed object-focus form of kain; ko = the actor 'I'; ang isda = 'the fish' — the noun in the spotlight. Same roles, different spotlight than 'Kumain ako'.

RootActor focusNon-actor focusEnglish
kainkumain / kumakain / kakainkinain / kinakain / kakainineat
inomuminom / umiinom / iinomininom / iniinom / iinumindrink
bilibumili / bumibili / bibilibinili / binibili / bibilhinbuy
sulatsumulat / sumusulat / susulatsinulat / sinusulat / susulatinwrite
gawagumawa / gumagawa / gagawaginawa / ginagawa / gagawinmake · do
puntapumunta / pumupunta / pupuntapinuntahan / pinupuntahan / pupuntahan (location focus)go (to)
bigaynagbigay / nagbibigay / magbibigayibinigay / ibinibigay / ibibigaygive
lutonagluto / nagluluto / maglulutoniluto / niluluto / lulutuincook

Column order inside each cell: Completed / Ongoing or habitual / Contemplated. -um- marks many actor-focus verbs, mag- others; the non-actor column uses -in / -in-an / i- families — object focus for most roots, location focus for punta (pinuntahan = went TO a place).

Which focus do I use?

Beginner rule of thumb: when the doer is the natural subject of your English sentence and the thing affected is indefinite, use actor focus (Kumain ako ng isda — 'I ate fish'). When the thing affected is definite — 'the fish', 'this gift' — Tagalog strongly prefers object focus (Kinain ko ang isda). Tagalog speakers reach for object-focus far more than English uses the passive — it's not formal, it's normal.

Mini practice

Q1. Tagalog verbs mark:
  • past/present/future tense
  • aspect (completed/ongoing/contemplated)
  • gender
  • singular/plural only

Answer: aspect (completed/ongoing/contemplated)

Q2. kumakain is which aspect?
  • completed
  • ongoing
  • contemplated
  • command

Answer: ongoing

Q3. In 'Kinain ng bata ang isda', the ang-marked noun is:
  • the child (actor focus)
  • the fish (object focus)
  • the place
  • unspecified

Answer: the fish (object focus)

Q4. CV-reduplication (kakain, kumakain) signals:
  • completed aspect
  • ongoing or contemplated aspect
  • past tense
  • negation

Answer: ongoing or contemplated aspect

Q5. For a definite object like 'the fish', natural Tagalog prefers:
  • actor focus
  • object focus
  • no verb
  • Taglish

Answer: object focus