The central contrast is semantic: a stative in -ik-/-ek- presents an affected thing as entering a state, being in that state, or being capable of undergoing an action, without grammatically implying a particular external agent. A passive in -w-/-iw-/-ew- presents an event done to the subject and leaves its agent understood or expressible with na.
English often translates both with “be”: “the cup is broken,” “the report is readable,” “the report is being read.” Swahili makes learners decide whether the clause is about a property/state or about an externally caused event.
One transitive base, two valency reductions
Start with transitive vunja “break something.”
| Form | Build | Subject | External breaker |
|---|---|---|---|
| vunja | vunj-a | agent | is the subject |
| vunjika | vunj-ik-a | broken item | not part of the predicate |
| vunjwa | vunj-w-a | broken item | understood or added with na |
Mtoto alivunja sahani alipokuwa akiosha vyombo.
The child broke a plate while washing the dishes.
Sahani imevunjika pembeni, kwa hiyo usiitumie tena.
The plate is chipped/broken at the edge, so do not use it again.
Sahani imevunjwa kwa makusudi, si kwa bahati mbaya.
The plate has been broken deliberately, not accidentally.
Active a-li-vunj-a has an agent subject and a theme object. Stative i-me-vunj-ik-a makes class 9 sahani the sole core participant and reports its condition. Passive i-me-vunj-w-a also makes the plate the subject, but kwa makusudi “deliberately” points to an intentional though unnamed breaker.
Readable versus actually read
The cleanest minimal pair comes from soma “read”:
| Form | Build | Claim |
|---|---|---|
| inasomeka | i-na-som-ek-a | it is readable/easy enough to read |
| inasomwa | i-na-som-w-a | it is being read by someone |
| haikusomeka | ha-i-ku-som-ek-a | it was not readable |
| haikusomwa | ha-i-ku-som-w-a | nobody read it |
Nakala hii inasomeka vizuri hata bila miwani.
This copy is easy to read even without glasses.
No reading event need be underway. The print and circumstances make reading possible.
Nakala hii inasomwa na wakili kabla ya kusainiwa.
This copy is being read by the lawyer before it is signed.
An actual reading event is in progress, and na wakili names its agent. The passive-agent guide explains why na can introduce that participant.
Ujumbe haukusomeka kwa sababu wino ulifutika.
The message was illegible because the ink rubbed off.
Ujumbe haukusomwa kwa sababu uliwasili baada ya kikao.
The message was not read because it arrived after the meeting.
Past -ku- does not decide the voice. The contrast remains inside the stem: som-ek- evaluates readability, while som-w- denies an event carried out by readers.
The agent-phrase diagnostic
A productive passive licenses na + agent. A stative does not. It may mention a cause, instrument, environment, or reason, but none of those becomes the suppressed performer of a transitive event.
Kamba ilikatwa na mfanyakazi kwa kisu kikali.
The rope was cut by the worker with a sharp knife.
I-li-kat-w-a is passive. Na mfanyakazi is the agent and kwa kisu is the instrument.
Kamba ilikatika ilipokwama kwenye gurudumu.
The rope snapped when it got caught in the wheel.
I-li-kat-ik-a is inchoative stative: the rope entered the cut/broken state. The subordinate clause supplies a circumstance or cause, not an agent selected by katika.
A perfect passive can itself describe a persisting result, so “event” versus “state” is not an absolute tense contrast. Mlango umefungwa may mean “the door has been closed/is locked,” but it still implies an external closing action. Mlango umefungika presents the door as having shut or reached a closed condition without encoding a closer.
Mlango umefungwa na mlinzi; funguo ziko ofisini.
The door has been locked by the guard; the keys are in the office.
Dirisha limefungika ghafla na karatasi zimebaki ndani.
The window has shut suddenly and the papers have been left inside.
The adverb ghafla supports an inchoative reading. It does not turn -ik- into passive morphology.
Possibility and susceptibility favor the stative
Potential statives say that the subject permits, resists, or facilitates an action. English often uses “can be + participle,” which looks passive even though no actual event is asserted.
Kitambaa hiki kinakunjika na kinatoshea kwenye begi dogo.
This fabric folds up and fits into a small bag.
Ki-na-kunj-ik-a attributes flexibility/foldability to the fabric. Nobody has to be folding it now.
Chuma hiki hakipindiki kwa mikono; tutahitaji mashine.
This metal cannot be bent by hand; we will need a machine.
The phrase kwa mikono specifies means or circumstances, not a passive agent. Contrast an actual passive event:
Chuma kilipindwa kwa mashine maalumu kiwandani.
The metal was bent with a special machine at the factory.
This reports a completed externally caused action with pind-w-a.
Stative and passive morphology in larger stems
Both extensions can follow a derived base, but they contribute different scope:
| Build | Finished form | Interpretation |
|---|---|---|
| fund-ish-ik-a | fundishika | be teachable: causative base plus stative |
| fund-ish-w-a | fundishwa | be taught: causative base plus passive |
| elez-ek-a | elezeka | be explainable/comprehensible |
| elez-w-a | elezwa | be explained by someone |
Kanuni hiyo inaelezeka kwa mifano miwili rahisi.
That rule can be explained with two simple examples.
Kanuni hiyo ilielezwa na mkufunzi mwanzoni mwa warsha.
That rule was explained by the trainer at the beginning of the workshop.
Productive extension order is visible in the segmented builds, but established lexical usage remains decisive. Do not coin a stative merely because a passive exists.
Register
Both statives and passives are neutral in (informal) and (formal) Standard Swahili. Potential statives are frequent in reviews, specifications, and (academic) assessment; event passives are frequent in procedures and reports. In everyday conversation, the same contrast remains meaningful: haifungiki diagnoses a door problem, while haifungwi says people do not close it.
Common Mistakes
Using stative with a passive agent
❌ Ripoti ilisomeka na kamati jana.
Incorrect for an actual reading — stative someka does not license kamati as agent.
✅ Ripoti ilisomwa na kamati jana asubuhi.
The report was read by the committee yesterday morning.
Using passive for an inherent property
❌ Maandishi haya hayasomwi kwa sababu herufi ni ndogo.
Wrong for the intended illegibility — passive says people do not read them.
✅ Maandishi haya hayasomeki kwa sababu herufi ni ndogo.
This text is unreadable because the letters are small.
Assuming perfect -me- makes both forms equivalent
❌ Kikombe kimevunjwa chenyewe bila tukio la nje.
Incorrect intended spontaneous reading — passive still implies an external breaking event.
✅ Kikombe kimevunjika kilipoanguka kutoka mezani.
The cup broke when it fell from the table.
Treating -ik- as a tense
❌ Kesho mlango ufungika vizuri.
Incorrect — stative -ik- does not replace future -ta-.
✅ Kesho mlango utafungika vizuri baada ya bawaba kurekebishwa.
Tomorrow the door will close properly after the hinges are repaired.
Key Takeaways
- Stative -ik-/-ek- presents a state, change, or possibility without selecting an external agent.
- Passive -w-/-iw-/-ew- presents an externally caused event and can take na + agent.
- The same TAM can occur with both; perfect passive may have a result reading but still implies external action.
- Means, circumstances, and causes can accompany a stative without becoming passive agents.
- English “can be” frequently corresponds to a Swahili stative, not a passive.
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Start learning Swahili →Related Topics
- Forming the Stative in -ik-/-ek-B1 — Form Swahili statives with -ik-/-ek- to express potential, spontaneous result, and an intransitive state without an external agent.
- Inchoative and Result-State UsesC1 — Interpret stative verbs as changes into a condition, resulting states, susceptibilities, or established lexical properties.
- Forming the PassiveB1 — Form Standard Swahili passives with -w-, -iw-, and -ew- while preserving TAM and making the promoted participant control subject agreement.
- Passive Agents with naB1 — Add an optional passive agent with na, distinguish that agent from an instrument, and choose active voice when responsibility must be unmistakable.
- Resultative and Stative Compound PredicatesC1 — Distinguish prior events from resulting conditions in kuwa compounds with perfect, passive, and stative predicates.