The useful beginner generalization is that higher Swahili numerals do not take ordinary adjective-like noun-class concord. Sita “six,” saba “seven,” tisa “nine,” and kumi “ten” remain identical after people, trees, cars, books, and houses. The head noun still controls demonstratives and the finite verb.
The page title is a shorthand, not a license to ignore exceptions. Eight is the inherited agreeing stem -nane: watu wanane, magari manane, vitabu vinane. Larger numbers can also end in an agreeing unit from one through five. Accurate Swahili therefore requires a small lexical split, not the false rule “nothing above five ever agrees.”
The six-to-ten comparison
| Head noun | Six | Seven | Eight | Nine | Ten |
|---|---|---|---|---|---|
| watu (2) | watu sita | watu saba | watu wanane | watu tisa | watu kumi |
| miti (4) | miti sita | miti saba | miti minane | miti tisa | miti kumi |
| magari (6) | magari sita | magari saba | magari manane | magari tisa | magari kumi |
| viti (8) | viti sita | viti saba | viti vinane | viti tisa | viti kumi |
| nyumba (10) | nyumba sita | nyumba saba | nyumba nane | nyumba tisa | nyumba kumi |
Watu sita wamesubiri ndani, lakini magari sita yamebaki nje.
Six people have waited inside, but six cars have remained outside.
The numeral sita is identical. Agreement appears on the verbs: class 2 wa-me-subir-i versus class 6 ya-me-bak-i.
Tulipanda miti saba na maua saba kando ya njia.
We planted seven trees and seven flowers beside the path.
Class 4 miti and class 6 maua both take bare saba. A noun-class prefix on the numeral would be an invention.
Why the split exists
The low agreeing stems belong to an inherited concord-bearing set, while several common higher numeral words behave as invariant lexical items. Many higher forms entered Swahili through long contact with Arabic; kumi is inherited but patterns as an invariable numeral in this construction. Etymology explains the uneven inventory historically, but it is not a productive rule a learner can apply to an unfamiliar word.
The honest learning rule is lexical:
- agreeing: -moja, -wili, -tatu, -nne, -tano, -nane;
- invariable: sita, saba, tisa, kumi, the multiples of ten, and the magnitude blocks taught at this level.
This division is stable across (informal) and (formal) Standard Swahili.
The contrasting agreeing paradigms are set out in noun-class agreement with one through five.
Eight is the essential exception
The citation form nane becomes wanane, minane, manane, vinane, or zero-prefix nane according to class.
Wageni wanane wameketi kwenye meza mbili kubwa.
Eight guests are seated at two large tables.
Mabasi manane yataondoka katika kituo hiki kabla ya jioni.
Eight buses will leave this station before evening.
Vyumba vinane vina madirisha yanayoelekea bustanini.
Eight rooms have windows facing the garden.
The agreement chain remains local: class 2 wageni—wanane—wame-, class 6 mabasi—manane—yata-, and class 8 vyumba—vinane—vina-. “Six and above” cannot be treated as one invariant block because -nane visibly belongs with the older agreeing series.
Tens are invariable, but final units may agree
Ishirini, thelathini, arobaini, hamsini, sitini, sabini, themanini, and tisini remain unchanged after any noun.
Wakulima ishirini wameleta mifuko hamsini ya mahindi.
Twenty farmers have brought fifty sacks of maize.
Human wakulima controls wa-me-, while class 4 mifuko would control i- if it were the subject. Neither head changes ishirini or hamsini.
When a compound number ends in an agreeing unit, only that final unit changes:
| Quantity | People | Cars | Books |
|---|---|---|---|
| 22 | watu ishirini na wawili | magari ishirini na mawili | vitabu ishirini na viwili |
| 27 | watu ishirini na saba | magari ishirini na saba | vitabu ishirini na saba |
| 28 | watu ishirini na wanane | magari ishirini na manane | vitabu ishirini na vinane |
Vitabu sitini na vinane vimewasili, lakini makasha sabini bado yako bandarini.
Sixty-eight books have arrived, but seventy crates are still at the port.
In sitini na vinane, sitini stays fixed and vi-nane agrees. Sabini has no remainder and stays fixed.
Magnitudes stay fixed while the clause agrees
The same principle extends to mia, elfu, and milioni blocks.
Shule hizo kumi zimepokea vitabu elfu sita.
Those ten schools have received six thousand books.
Magari milioni mbili yamesajiliwa katika kipindi hicho.
Two million cars were registered during that period.
In the first, class 10 shule hizo... zime- and class 8 vitabu have their own roles, while kumi and elfu sita are invariant numerical material. In the second, class 6 magari controls ya-me-sajili-w-a even though the immediately adjacent quantity contains milioni mbili.
If a large number ends in a low agreeing unit, concord reappears: watu elfu moja na watano “1,005 people,” vitabu elfu moja na vitano “1,005 books.” The magnitude does not turn an agreement-bearing remainder into an invariant one.
Practical calculation and schedule exchange
—Maboksi ni mangapi? —Ni sita; matatu yana vitabu na matatu yana vifaa vya jikoni.
—How many boxes are there? —There are six; three contain books and three contain kitchen equipment.
Answer sita is bare because it is invariable. The two occurrences of matatu stand for class 6 maboksi and therefore show concord. The verbs yana also resume class 6.
Sita jumlisha saba ni kumi na tatu.
Six plus seven is thirteen.
Arithmetic uses bare forms throughout because there is no counted head noun.
—Mafunzo yanaanza saa ngapi? —Saa sita mchana, baada ya mapumziko.
—What time does the training begin? —At noon, after the break.
East African saa sita mchana is noon because clock counting begins around six in the morning. It is not 6:00 p.m. The bare sita in the clock label is not noun-class agreement.
An invariable numeral can stand for a classed noun
When the noun is already known, sita, saba, tisa, or kumi can stand alone. The numeral still remains invariant, but pronouns and verbs reveal the understood noun’s class.
Magari kumi yalikaguliwa; sita yalipitishwa na manne yakakataliwa.
Ten cars were inspected; six passed and four were rejected.
Standalone sita does not become masita, yet class 6 ya- appears in yalipitishwa. Agreeing manne in the same sentence makes the lexical split visible.
Wageni saba wamefika, na wote saba wamepewa vyumba.
Seven guests have arrived, and all seven have been given rooms.
The second saba remains unchanged after class 2 quantifier wote. Human agreement appears in wamefika and wamepewa, not on the invariable numeral.
With eight, ellipsis looks different because the numeral itself agrees:
Tulialika walimu wanane; wote wanane walithibitisha kuhudhuria.
We invited eight teachers; all eight confirmed that they would attend.
This contrast proves that “invariable” describes the numeral’s form, not the absence of a noun-class controller from the sentence.
Invariable does not mean free word order
These numerals still occupy the normal cardinal position after the head noun. Other modifiers can surround them according to ordinary noun-phrase structure; invariability changes form, not syntax.
Magari yetu haya sita mapya yatatumika kwa safari za mikoani.
These six new cars of ours will be used for interregional trips.
The head comes first, followed here by possessive yetu, demonstrative haya, numeral sita, and adjective mapya. Class 6 concord appears everywhere except the invariable numeral: magari—yetu—haya—sita—mapya—ya-ta-.
Taa zile tisa ndogo zinatumia umeme kidogo.
Those nine small lamps use little electricity.
Class 10 gives zile—zi-na-, while tisa stays bare and in its normal postnominal position. Placing sita or tisa before the noun merely because English says “six cars” would create a separate word-order error.
Common Mistakes
Adding class concord to sita
❌ Viti visita vimewekwa kwenye jukwaa.
Incorrect — sita is invariable.
✅ Viti sita vimewekwa kwenye jukwaa.
Six chairs have been placed on the stage.
Applying the invariable shortcut to eight
❌ Wafanyakazi nane wamepewa zamu mpya.
Incorrect in careful Standard Swahili — a human plural head requires wanane.
✅ Wafanyakazi wanane wamepewa zamu mpya.
Eight employees have been given new shifts.
Making a tens word agree
❌ Magari maishirini yameuzwa mwezi huu.
Incorrect — ishirini never takes class 6 ma-.
✅ Magari ishirini yameuzwa mwezi huu.
Twenty cars have been sold this month.
Leaving the head noun’s verb invariant
❌ Miti tisa zimeanguka baada ya dhoruba.
Incorrect — invariable tisa does not change class 4 verb agreement.
✅ Miti tisa imeanguka baada ya dhoruba.
Nine trees have fallen after the storm.
Reading an East African clock hour from midnight
❌ Saa sita mchana ni saa sita jioni kwa mfumo wa kimataifa.
Incorrect — East African hour six in daytime is noon.
✅ Saa sita mchana ni saa kumi na mbili adhuhuri kwa mfumo wa kimataifa.
East African hour six in daytime is twelve noon internationally.
Key Takeaways
- Sita, saba, tisa, kumi, tens, and magnitude blocks do not take ordinary noun-class concord.
- -Nane is the crucial agreeing exception: wanane, minane, manane, vinane, nane.
- A large compound may end in another agreeing unit even though its tens or magnitude material stays fixed.
- The counted noun—not the nearest number word—continues to govern demonstratives, pronouns, and finite verbs.
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Start learning Swahili →Related Topics
- Agreement with Numerals One through FiveB1 — Form the agreeing Swahili numerals one through five and recognize their irregular surface shapes.
- Agreement in Ordinal ExpressionsB1 — Build first, second, and higher ordinal expressions with the associative concord of the ranked noun.
- Numbers Eleven to Ninety-NineA1 — Build numbers from eleven to ninety-nine with tens plus na, and preserve low-numeral concord inside larger quantities.
- Numerals as DeterminersA2 — Place cardinal numerals after the noun and make the agreeing numerals one through five match its class.