An oblique relative describes a head that is not simply the following clause's subject or direct object. It may be a possessor (“the student whose father…”), companion (“the colleague with whom…”), instrument (“the knife with which…”), location (“the house in which…”), or passive agent (“the cook by whom…”). Standard Swahili normally gives that head a resumptive expression inside the clause: mshauri ambaye tulizungumza naye “the adviser with whom we spoke.”
English freely strands a preposition at the end of a relative clause: “the person I spoke with.” Swahili does not leave bare na without its complement. The relational expression must be complete—naye, nao, nayo, nacho, or another class-shaped form—or the relation must be rebuilt with a locative, possessive, or applicative construction.
Companion and comitative relatives with na-
The preposition na “with/by/and” combines with a short class pronoun that resumes the head. The ending belongs to the same concord family as the ending on amba-.
| Head class | amba- form | Resumptive na-form |
|---|---|---|
| 1 | ambaye | naye |
| 2 | ambao | nao |
| 3/11/14 | ambao | nao |
| 4/6/9 | ambayo | nayo |
| 5 | ambalo | nalo |
| 7 | ambacho | nacho |
| 8 | ambavyo | navyo |
| 10 | ambazo | nazo |
| 15/17 | ambako | nako |
| 16 | ambapo | napo |
| 18 | ambamo | namo |
Rafiki ambaye nilisafiri naye kwenda Tanga amehamia Mombasa.
The friend with whom I traveled to Tanga has moved to Mombasa.
Wafanyakazi ambao tulikutana nao walitueleza ratiba mpya.
The employees whom we met with explained the new schedule to us.
Magari ambayo tulipeleka vifaa nayo yamerudishwa kwenye karakana.
The vehicles with which we transported the equipment have been returned to the workshop.
The head chooses both forms: class 1 rafiki—ambaye—naye, class 2 wafanyakazi—ambao—nao, and class 6 magari—ambayo—nayo. The finite verbs nilisafiri, tulikutana, and tulipeleka keep their own first-person subject marking.
Instruments: resumptive na- or an applicative verb
An instrument can be resumed with a matching na- form:
Kisu ambacho mpishi alikata mkate nacho bado kiko mezani.
The knife with which the cook cut the bread is still on the table.
Kalamu ambayo nilijaza fomu nayo imepotea.
The pen with which I filled in the form has gone missing.
Class 7 kisu gives ambacho…nacho; class 9 kalamu gives ambayo…nayo. This structure keeps the instrument visibly separate from the direct object mkate or fomu.
Swahili may instead promote the instrument through an applicative verb extension. Compare:
Kisu ambacho mpishi alikatia mboga kimewekwa kwenye droo.
The knife with which the cook cut the vegetables has been put in the drawer.
Alikatia contains the applicative extension and licenses the instrument as a core participant. This alternative is often compact, but lexical convention matters: not every English preposition can be eliminated by mechanically adding an applicative. The dedicated instrumental applicative page explains that valency change.
Possessors require a resumptive possessive
English whose bundles relative marking and possession into one word. Swahili first links the possessor head with amba- and then expresses possession normally on the possessed noun.
Mwanafunzi ambaye mama yake anafanya kazi bandarini amepata ufadhili.
The student whose mother works at the port has received a scholarship.
Wanafunzi ambao wazazi wao walihudhuria kikao wamepewa fomu mpya.
The students whose parents attended the meeting have been given new forms.
Kampuni ambayo wafanyakazi wake wamegoma imesitisha uzalishaji.
The company whose employees have gone on strike has suspended production.
The possessor is resumed by -ake for a singular animate or an inanimate referent; inanimate antecedents commonly retain -ake even when grammatically plural. Plural animate possessors take -ao. The initial concord of the possessive still agrees with the possessed noun: mama yake, wazazi wao, wafanyakazi wake. Thus ambayo follows class 9 kampuni, while wa- in wafanyakazi wake follows class 2 wafanyakazi.
This is a genuine two-controller construction. Matching the possessive's first syllable directly to the external head produces errors.
Locations: locative amba- or an internal locative phrase
When the head is explicitly construed as a place, ambapo, ambako, and ambamo can introduce specific-location, general-area, and interior readings.
Tutakutana mahali ambapo basi la hospitali husimama.
We will meet at the place where the hospital bus stops.
Huko ambako njia mbili za msituni zinakutana kuna kibanda cha walinzi.
There where the two forest paths meet, there is a guards' hut.
Chumba ambamo watoto wanalala kina madirisha mawili.
The room in which the children sleep has two windows.
In contemporary speech ambapo is often extended beyond a strictly class 16 point, and speakers vary in how strongly they preserve the three-way contrast (regional: East Africa). Careful (formal) prose can use ambamo to make an interior relation explicit.
A concrete noun can also retain its ordinary noun-class amba- form and be resumed by a locative phrase:
Nyumba ambayo tunaishi ndani yake iko karibu na soko.
The house in which we live is close to the market.
Mji ambao tulikutana humo una vituo vitatu vya mabasi.
The town in which we met has three bus stations.
Class 9 nyumba selects ambayo, and ndani yake supplies “inside it.” Class 3 mji selects ambao, and locative humo resumes “in there.” This option is useful when the noun's ordinary class matters elsewhere in the sentence.
Passive agents with naye and its class counterparts
Passive na “by” is also a preposition and can take a resumptive short form. This pattern is grammatical and particularly at home in dense (formal) or (academic) prose.
Mpishi ambaye chakula cha wageni kiliandaliwa naye amepewa pongezi.
The cook by whom the guests' meal was prepared has been congratulated.
Everyday speech would often choose the clearer active subject relative mpishi ambaye aliandaa chakula cha wageni. The passive oblique version is useful when the discourse keeps chakula as the embedded subject or when the agent is being recovered from a passive report.
Same head across core-role strategies
Before building an oblique relation, confirm that the head is not simply a subject or object. Compare class 1 mshauri in the standard pairs below.
| Role | amba- relative | Incorporated relative |
|---|---|---|
| subject | mshauri ambaye alitupigia | mshauri aliyetupigia |
| direct object | mshauri ambaye tulimwalika | mshauri tuliyemwalika |
| negative direct object | mshauri ambaye hatukumwalika | mshauri tusiyemwalika |
| companion | mshauri ambaye tulizungumza naye | resumptive relation required |
Mshauri ambaye alitupigia asubuhi atatembelea kiwanda kesho.
The adviser who called us this morning will visit the factory tomorrow.
Mshauri tuliyemwalika kwenye mafunzo ameleta mifano mipya.
The adviser whom we invited to the training has brought new examples.
Mshauri ambaye hatukumwalika hakupokea ratiba ya mkutano.
The adviser whom we did not invite did not receive the meeting schedule.
Mshauri ambaye tulizungumza naye alipendekeza tuanze na bajeti.
The adviser with whom we spoke suggested that we begin with the budget.
The companion relation needs naye even though ambaye already agrees with the adviser. Strategy choice therefore depends on grammatical role and processing weight, not simply on whether the antecedent is human.
Common Mistakes
Stranding a bare preposition
❌ Rafiki ambaye nilisafiri na anaishi Malindi.
Incorrect — na cannot be left without a complement in this relative construction.
✅ Rafiki ambaye nilisafiri naye anaishi Malindi.
The friend with whom I traveled lives in Malindi.
Using human agreement for an instrument
❌ Kisu ambaye nilikata kamba naye kimepotea.
Incorrect — class 7 kisu requires ambacho and nacho.
✅ Kisu ambacho nilikata kamba nacho kimepotea.
The knife with which I cut the rope has gone missing.
Matching the possessive to the external head
❌ Kampuni ambayo wafanyakazi yao wamegoma imefungwa leo.
Incorrect — wafanyakazi is class 2 and requires possessive concord wa-: wake.
✅ Kampuni ambayo wafanyakazi wake wamegoma imefungwa leo.
The company whose employees have gone on strike is closed today.
Adding an incorporated marker after amba-
❌ Mshauri ambaye tuliyizungumza naye ameondoka.
Incorrect — after ambaye, the finite verb is ordinary; the companion is resumed separately by naye.
✅ Mshauri ambaye tulizungumza naye ameondoka.
The adviser with whom we spoke has left.
Key Takeaways
Oblique amba- relatives preserve the relation inside the clause. Possessors reappear in a possessive such as yake/wao; companions and instruments can reappear as naye/nao/nacho/nayo; locations use ambapo/ambako/ambamo or a phrase such as ndani yake; passive agents can also be resumed after na. Do not strand an English-style preposition, and do not confuse the amba- concord with the concord required by the possessed noun or resumptive expression.
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Start learning Swahili →Related Topics
- Object Relatives with amba-B2 — Keep the amba- form tied to the object head while the following finite verb marks its own subject and any resumptive object concord.
- Perfect Relatives with amba- and -me-C1 — Express perfect and negative-perfect relative clauses with an agreeing amba- form followed by an independently finite -me- or -ja- verb.
- Whose and Possessor RelativesC1 — Express whose with an agreeing relative link plus a resumptive possessive, associative phrase or having construction.
- Locative Relatives with -po, -ko and -moB2 — Build relative clauses meaning where, when and inside where with class 16, 17 and 18 concord.
- Locative Concord pa-, ku- and m(u)-B1 — Use the three Swahili locative concord series to distinguish a specific spot, a general area or direction, and an interior.