The connector at coordinates elements of equal syntactic status: nouns with nouns, properties with properties, predicates with predicates, or one complete clause with another. English usually translates it as and, but not every English and expresses simple addition. Filipino may choose saka for explicit sequence, pati for inclusive “also/even,” or a causal or contrastive connector when that logical relation matters.
Unless labeled otherwise, the patterns below are neutral contemporary Filipino. The contracted written form 't occurs in elevated set phrases and literary writing (formal/literary), but ordinary prose uses full at.
What at can coordinate
| Coordinated units | Pattern | Example function |
|---|---|---|
| nouns or noun phrases | X at Y | adds two participants or items |
| adjectival predicates | adjective at adjective | asserts two properties |
| verbal predicates | verb at verb | shares a recoverable participant |
| complete clauses | clause at clause | joins two assertions of equal rank |
| final item in a list | X, Y, at Z | closes an enumeration |
Bumili si Rosa ng bigas, gulay, at prutas para sa hapunan.
Rosa bought rice, vegetables, and fruit for dinner.
The single marker ng scopes over the coordinated item list. Repeating ng before each item is possible for deliberate emphasis, but it is unnecessary in an ordinary list.
Maliwanag at tahimik ang silid sa ikalawang palapag.
The room on the second floor is bright and quiet.
Both adjectives predicate properties of the same pivot. This differs from adjective–noun modification, which needs a linker: maliwanag na silid “bright room,” not maliwanag at silid.
Sharing an argument across predicates
When two coordinated predicates have the same actor or pivot, the second can omit it if reference remains clear.
Pumasok si Lea sa tanggapan at umupo sa tabi ng bintana.
Lea entered the office and sat beside the window.
Si Lea is the actor pivot of pumasok and the understood actor of umupo. Repeating si Lea is grammatical but can imply a contrast or restart.
Patient-oriented clauses can also share a recoverable actor:
Binuksan ni Paolo ang mga kahon at inayos ang laman sa ibabaw ng mesa.
Paolo opened the boxes and arranged their contents on the table.
The second predicate understands Paolo as actor, but introduces a new patient pivot ang laman. Coordination licenses omission through discourse; it does not erase the voice frame.
If the actors differ, state both:
Dumating si Lea at nagsimula ang pagpupulong.
Lea arrived, and the meeting began.
The second ang-phrase is not another name for Lea. Each coordinated clause has its own predicate and pivot.
At versus saka
At adds events without explicitly encoding their order, although real-world knowledge can suggest a sequence. Saka can mean “and then” or add a second item with stronger sequential/additive force.
Isara mo ang mga bintana at patayin mo ang mga ilaw.
Close the windows and turn off the lights.
Isara mo muna ang mga bintana, saka mo patayin ang mga ilaw.
Close the windows first, and then turn off the lights.
The first coordinates two instructions; it does not grammatically require one order. The second uses muna...saka to impose an explicit sequence. Colloquial at saka is widespread (informal) for “and also/and then,” but careful writing can choose at for addition or saka for sequence more precisely.
At versus pati
Pati marks inclusion, often adding an item that might not have been expected.
Dumalo sina Nena at Carlo sa pagpupulong.
Nena and Carlo attended the meeting.
Dumalo si Nena, pati si Carlo.
Nena attended, and Carlo did too—even Carlo.
The at sentence neutrally coordinates two names under plural personal marker sina. The pati sentence adds Carlo to an already relevant set and can suggest noteworthy inclusion. English and may translate both, but their information structures differ.
Clauses, cause, and contrast
Two at-linked clauses are presented as equal assertions. Causal dahil/kaya and contrastive pero/ngunit specify stronger relations.
Naghintay kami sa silong at humina ang ulan pagkaraan ng ilang minuto.
We waited under shelter, and the rain weakened after a few minutes.
The sentence reports two events. If the intended claim is that waiting happened because of rain, say Naghintay kami sa silong dahil malakas ang ulan. If the second is a consequence, kaya is clearer. Connector choice tells the listener how to relate the propositions rather than leaving the relation to inference.
Negation must be scoped carefully across coordination:
Hindi dumating si Ana at hindi rin dumating si Ben.
Ana did not arrive, and Ben did not arrive either.
Repeating hindi makes both negative claims explicit. Hindi dumating sina Ana at Ben can be understood collectively and may not clarify whether neither arrived or they failed to arrive together.
Questions can coordinate the requested actions:
Nabasa mo na ba ang ulat at naipadala mo na sa pangkat ang iyong puna?
Have you read the report and sent the group your comments?
The one ba scopes naturally over the coordinated status question. Repeating mo na in the second predicate keeps the same actor and completed-status reading explicit across the change from patient voice to conveyance voice. In a context where each answer must be separate, use two questions.
Ellipsis in connected speech
—Ano ang ginawa ninyo sa lumang silid? —Nilinis namin at ginawang maliit na aklatan.
—What did you do with the old room? —We cleaned it and turned it into a small library.
The reply omits the repeated room in both patient-voice predicates. The question makes that shared patient uniquely recoverable.
For more complex sharing, see voice in ellipsis and coordination.
Common Mistakes
Using at where a linker is required
❌ Bumili siya ng sariwa at isda sa palengke.
Incorrect for 'fresh fish' — adjective and noun form a modifier phrase, not coordination.
✅ Bumili siya ng sariwang isda sa palengke.
She bought fresh fish at the market.
Omitting the phrase marker before a coordinated object list
❌ Bumili si Omar tinapay at gatas bago umuwi.
Incorrect — the non-pivot items require ng.
✅ Bumili si Omar ng tinapay at gatas bago umuwi.
Omar bought bread and milk before going home.
Combining at with a subordinate connector in one slot
❌ Hindi kami tumuloy at dahil sarado ang tulay.
Incorrect — at and dahil cannot jointly introduce the same reason clause.
✅ Hindi kami tumuloy dahil sarado ang tulay.
We did not continue because the bridge was closed.
Dropping a required oblique marker in the second predicate
❌ Binuksan ni Liza ang pinto at pumasok ng silid.
Incorrect — pumasok takes a destination marked by sa.
✅ Binuksan ni Liza ang pinto at pumasok sa silid.
Liza opened the door and entered the room.
Key Takeaways
- At coordinates equal words, phrases, predicates, or clauses.
- Shared participants may be omitted when voice and context keep them recoverable.
- Saka makes sequence clearer; pati adds an inclusive or noteworthy member.
- Use dedicated connectors for cause, result, and contrast rather than asking at to express every English “and” relation.
- Phrase markers and linkers remain necessary inside coordinated structures.
Related Topics
- Coordination of PhrasesB2 — Coordinate compatible Filipino words and phrases with at, o, and contrastive connectors while sharing markers and arguments only where structure permits.
- Coordination of ClausesB2 — Coordinate complete Filipino clauses while keeping conjunction meaning, voice, aspect, clitic scope, and discourse order clear.
- Shared Arguments in CoordinationB2 — Share actors, pivots, and other participants across coordinated predicates without obscuring voice, role, or reference.
- pati, saka, and ni: Additive CoordinationB1 — Distinguish noteworthy inclusion with pati, addition or sequence with saka, and negative pairing with ni...ni.
- o: OrB1 — Use o to coordinate alternatives in words, phrases, questions, and clauses, with clear scope and natural reduction.
- Voice in Ellipsis and CoordinationC1 — Coordinate Filipino predicates and omit recoverable participants while preserving each verb's voice alignment and a clear shared reference.