When Swahili numerals one through five modify a noun, they take concord from that noun’s class. A learner therefore meets mtoto mmoja “one child,” watoto wawili “two children,” miti mitatu “three trees,” magari manne “four cars,” and vitabu vitano “five books.” The numeral is part of the same agreement system as adjectives and quantifiers.
English changes only one versus the plural noun. Swahili makes a second distinction: once the quantity is greater than one, the noun moves to its plural class, and the numeral takes that plural class’s form. Most basic numerals above five are different: sita, saba, tisa, and kumi remain unchanged after the noun. Eight is the important exception: the inherited stem -nane still takes concord, as in watu wanane and vitabu vinane.
The agreeing stems
The citation stems are -moja “one,” -wili “two,” -tatu “three,” -nne “four,” and -tano “five.” The hyphen indicates that a concord element must be supplied; ordinary spelling joins the result as one word.
The most useful way to learn the system is by singular–plural noun-class pair:
| Class pair | One | Two | Three | Four | Five |
|---|---|---|---|---|---|
| 1/2: child | mtoto mmoja | watoto wawili | watoto watatu | watoto wanne | watoto watano |
| 3/4: tree | mti mmoja | miti miwili | miti mitatu | miti minne | miti mitano |
| 5/6: fruit | tunda moja | matunda mawili | matunda matatu | matunda manne | matunda matano |
| 7/8: chair | kiti kimoja | viti viwili | viti vitatu | viti vinne | viti vitano |
| 9/10: letter | barua moja | barua mbili | barua tatu | barua nne | barua tano |
| 11/10: thread | uzi mmoja | nyuzi mbili | nyuzi tatu | nyuzi nne | nyuzi tano |
Class 5 and classes 9/10 show especially important surface forms. Standard Swahili says tunda moja, not tunda jimoja, and barua mbili, not barua wiwili. These are established concord shapes; they should not be reconstructed by attaching the most visible noun prefix mechanically.
Parallel agreement chains
Once the noun and numeral establish the class, demonstratives and verbs must report the same choice.
Watoto hawa wawili wamefika mapema.
These two children have arrived early.
Miti hii mitatu imekauka wakati wa kiangazi.
These three trees dried out during the dry season.
Viti hivi vinne vimevunjika.
These four chairs have broken.
Barua hizi tano zimefika leo.
These five letters arrived today.
The class chain in each sentence is independent of the English word order:
| Controller | Numeral | Demonstrative | Verb marker |
|---|---|---|---|
| watoto (2) | wawili | hawa | wa-me-fika |
| miti (4) | mitatu | hii | i-me-kauka |
| viti (8) | vinne | hivi | vi-me-vunjika |
| barua (10) | tano | hizi | zi-me-fika |
The class 10 numeral tano has no visible prefix, but it is still the correct class 10 form. Lack of an audible concord segment does not license class 8 vitano or class 2 watano.
The special behavior of -wili
-wili makes the class contrasts particularly audible: wawili, miwili, mawili, viwili, and class 9/10 mbili. The nasal-class form mbili must be memorized. It is not spelled nwili, nywili, or wili.
Nimenunua maembe mawili na machungwa matatu.
I have bought two mangoes and three oranges.
Tuna vyumba viwili, lakini tunahitaji vitanda vitatu.
We have two rooms, but we need three beds.
Nimepokea barua mbili kutoka chuoni.
I have received two letters from the university.
The numeral agrees with each local head. In the second example, class 8 vyumba controls viwili, and class 8 vitanda separately controls vitatu. Agreement is not copied forward merely because two nouns appear in the same sentence.
Keep both n's in -nne
The stem -nne begins with a doubled n, and the standard forms retain that spelling: wanne, minne, manne, vinne, and nne. Do not simplify them to wane, mine, mane, or vine.
Tutakaa hapa kwa siku nne.
We will stay here for four days.
Madaktari wanne wanafanya kazi usiku wa leo.
Four doctors are working tonight.
Alibeba mifuko minne bila kuomba msaada.
He carried four bags without asking for help.
Although madaktari has class 6 noun morphology, it denotes people and therefore takes the class 2 numeral and subject concords wanne and wa-. This human-agreement pattern is separate from the spelling rule for -nne.
This spelling is not an optional marker of careful or formal speech. It is the normal orthography in every register.
What changes after five
The agreeing low numerals belong to the inherited Bantu concord system, while several common higher forms—especially sita, saba, tisa, and kumi—are invariable in this attributive construction. Compare class 8 and class 2:
Viti vitano vimepelekwa ukumbini, na viti sita vimebaki nje.
Five chairs have been taken into the hall, and six chairs have remained outside.
Watoto watano waliingia kwanza, kisha watoto sita wakaingia.
Five children entered first, and then six children entered.
The boundary is visible inside each sentence: vitano and watano agree, but sita stays sita. This is not an absolute “all numbers from six on” rule, because -nane “eight” agrees: viti vinane, watoto wanane, miti minane, but class 10 nyumba nane. Larger numeral expressions have additional structure, but that belongs on their dedicated pages.
Low units inside larger numbers
Tens and magnitude expressions remain stable, but a final unit from one through five can still agree with the counted head.
Wahudumu ishirini na wanne wamegawanywa katika timu nne.
Twenty-four attendants have been divided into four teams.
In ishirini na wanne, only final wanne shows plural-human concord with wahudumu. Class 10 timu instead takes nne. This is why neither “every part agrees” nor “large numbers never agree” is a safe rule.
For a simple count of one, use a singular head: mhudumu mmoja. In a larger total such as wahudumu ishirini na mmoja “twenty-one attendants,” the head remains plural because mmoja names the final singleton remainder inside the compound number.
Omitted nouns and conventional number labels
An agreeing numeral can replace a noun already established in the conversation:
—Unataka machungwa mangapi? —Manne. Yote ni shilingi elfu mbili.
—How many oranges do you want? —Four. Altogether they cost two thousand shillings.
Standalone manne preserves class 6 machungwa, and yote confirms the same plural class. The price block shilingi elfu mbili follows the structure of the amount rather than copying fruit concord.
Agreement depends on grammatical function, not merely on seeing a number. Write and say magari manne when the numeral modifies class 6 magari. A digit in magari 4 does not visibly spell out concord, though it is read magari manne in a normal noun phrase. Dates and East African clock labels conventionally use bare cardinals: tarehe nne “the fourth day of the month” and saa nne asubuhi “10:00 a.m.” Independent calculations likewise use citation forms: nne jumlisha moja ni tano “four plus one is five.”
Register and natural use
These numeral forms are neutral across casual conversation, public information, journalism, and formal writing. Standard spelling writes the noun and numeral as separate words (watu watatu) but writes each numeral form internally as one word (wawili, not wa wili). Independent counting normally uses moja, mbili, tatu, nne, tano; noun-class concord appears when the numeral modifies or stands for a classed noun. Numbers Six and Above explains the invariable side of the boundary.
Common Mistakes
1. Using the class 9/10 form mbili for every noun
❌ Watoto mbili wanasubiri nje.
Incorrect — watoto is class 2, so two must be wawili.
✅ Watoto wawili wanasubiri nje.
Two children are waiting outside.
2. Separating the concord from the numeral stem
❌ Tuliona magari ma nne barabarani.
Incorrect — the class 6 form manne is one word.
✅ Tuliona magari manne barabarani.
We saw four cars on the road.
3. Adding concord to six
❌ Nyumba zisita zimejengwa hapa.
Incorrect — sita is invariable; class 10 zi- belongs on the verb, not the numeral.
✅ Nyumba sita zimejengwa hapa.
Six houses have been built here.
4. Changing only the numeral in a broken chain
❌ Viti hii mbili imevunjika.
Incorrect — the numeral, demonstrative, and verb all mismatch class 8 viti.
✅ Viti hivi viwili vimevunjika.
These two chairs have broken.
Begin with class 8 viti. The controller requires viwili, hivi, and vi-me-vunjika. Repairing mbili alone would not make the sentence grammatical.
Key Takeaways
The attributive numerals one through five agree with their noun class. Quantities greater than one also require the noun’s plural class. Learn the main paired paradigms, memorize class 9/10 mbili, and preserve both n’s in nne. Above five, sita, saba, tisa, and kumi are invariable, but -nane is an agreeing exception. As with every concord chain, debug from the head noun outward.
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Start learning Swahili →Related Topics
- Agreement with -enye 'Having/With'B1 — Build natural property descriptions with the full agreeing -enye series.
- Agreement in Ordinal ExpressionsB1 — Build first, second, and higher ordinal expressions with the associative concord of the ranked noun.
- Why Six and Above Are InvariableA2 — Use invariable sita, saba, tisa, kumi and larger numeral blocks while preserving head-noun agreement and the important -nane exception.