Hausa ko can join two alternatives: shayi ko kofi “tea or coffee,” yau ko gobe “today or tomorrow,” or two complete clauses. In an alternative question, the speaker asks the listener to select among those candidates. That is different from using initial ko to introduce a yes–no question or final ko? as a confirmation-seeking tag.
All unlabelled patterns here are (neutral Nigerian Standard Hausa). Alternative questions have natural phrase-level question intonation, but Standard Hausa does not require one invariant English-style final rise. In writing, the question mark and the overt choices make the interrogative force clear.
One question, two candidates
The most direct pattern keeps the choice in the position where the corresponding statement would have a noun phrase, time expression, or other constituent.
| Alternative type | Question | Natural short answer |
|---|---|---|
| object | Za ka sha shayi ko kofi? | Kofi. |
| time | Za ku tafi yau ko gobe? | Gobe. |
| place | Sun tsaya Kano ko Kaduna? | Kaduna. |
| predicate | Motar sabuwa ce ko tsohuwa ce? | Sabuwar ce. |
Za ki dafa shinkafa ko taliya da dare?
Will you cook rice or pasta tonight? (to one female)
Mu haɗu a ofis ko a gidan cin abinci?
Should we meet at the office or at the restaurant?
Kun zo da mota ko da babur?
Did you all come by car or by motorcycle?
The expected answer names a choice: Taliya, A ofis, Da mota. I “yes” does not select one alternative, and a’a “no” normally rejects the offered set rather than identifying a member. If neither option is correct, say so explicitly: Ba ɗaya ba; da ƙafa muka zo “Neither; we came on foot.”
Coordinate words, phrases, or full clauses
Syntactic ko can join constituents of the same conversational function. The alternatives need not be single nouns.
Kana son mu fara yanzu ko bayan sallar la’asar?
Do you want us to begin now or after the afternoon prayer? (to one male)
Amina za ta karanta rahoton ko za ta aika shi kawai?
Will Amina read the report, or will she just send it?
Likita ya ce ka huta ne ko ka ci gaba da aiki?
Did the doctor say that you should rest or that you should continue working? (to one male)
In the second example, ko coordinates two clauses, each with its own future subject marker. In the first, it coordinates two time expressions. Do not delete material mechanically: ellipsis is natural only where the shared structure remains recoverable.
For an emphatic “either A or B” presentation, Hausa can repeat ko: ko yau ko gobe “either today or tomorrow.” This is (neutral/emphatic) rather than obligatory.
Za a kammala aikin ko yau ko gobe?
Will the work be completed either today or tomorrow?
Alternative questions versus initial ko and final ko
The same spelling has three different syntactic jobs.
| Use | Example | Expected response |
|---|---|---|
| initial polar operator | Ko za ka zo? | I / A’a, plus a clause |
| final confirmation tag | Za ka zo, ko? | confirmation or correction |
| alternative coordinator | Za ka zo yau ko gobe? | Yau / Gobe |
Ko kin riga kin aika saƙon?
Have you already sent the message? (polar question to one female)
Kin riga kin aika saƙon, ko?
You have already sent the message, right? (confirmation-seeking tag)
Kin aika saƙon ta waya ko ta imel?
Did you send the message by phone or by email? (choice question to one female)
Punctuation helps show the tag in writing, but analysis must rest on structure and communicative purpose. A question melody alone cannot turn an absent alternative into an overt two-way choice.
Neutral order and focused alternatives
An in-situ choice can remain inside an otherwise plain clause. A focus construction instead highlights one candidate and treats the event as backgrounded. Compare a neutral statement, an object choice, and a focused correction:
Yaran sun sayi shayi.
The children bought tea. (neutral statement; plain completive sun)
Yaran sun sayi shayi ko kofi?
Did the children buy tea or coffee? (in-situ object alternatives; plain completive sun)
Ba shayi ba ne yaran suka saya; kofi ne.
It was not tea that the children bought; it was coffee. (focused correction; relative completive suka)
The last example uses suka, not plain sun, because the object is focused and the buying event is presupposed. Ne is a focus/copular particle; it is not an ordinary verb. With a feminine singular focused noun, use ce:
Amina ce ta kira, ko Hauwa ce?
Was it Amina who called, or was it Hauwa?
Here the choice concerns the subject’s identity. Each feminine candidate takes ce, and the background clause after Amina ce has relative-completive ta. The same focused pattern works with masculine candidates; the shared background can be left unspoken after the second candidate:
Musa ne ya kawo kayan, ko Audu ne?
Was it Musa who brought the things, or was it Audu?
Subject and object choices are not the same gap
The ordinary statement Musa ya kira Amina “Musa called Amina” supports different questions:
| Question | Choice concerns | Structure |
|---|---|---|
| Musa ne ya kira Amina, ko Audu ne? | subject | focused subject + relative ya |
| Musa ya kira Amina ko Hauwa? | object | alternatives remain in object position |
| Wa ya kira Amina? | open subject question | wh-subject + relative TAM |
| Wa Musa ya kira? | open object question | fronted wh-object + relative TAM |
An alternative question supplies candidates; a wa question does not. In Wa Musa ya kira?, Musa is the overt subject and wa is the object gap. In Wa ya kira Amina?, wa is the questioned subject. Singular ya looks the same in plain and relative completive boko, but the wh/focus syntax still selects the relative paradigm.
For a visible plural diagnostic, compare plain Yaran sun sayi shayi ko kofi? with focused Shayi ne yaran suka saya, ko kofi ne?
Choice questions carry a restricted presupposition
By offering A ko B, the speaker normally treats A and B as relevant candidates. That does not logically guarantee that one is correct. The listener may reject the list.
—Za mu haɗu ranar Talata ko Laraba? —Ba ɗaya ba; Alhamis ya fi mini.
—Will we meet on Tuesday or Wednesday? —Neither; Thursday suits me better.
—Ka ajiye makullin a mota ko a ofis? —Ban ajiye shi a ko ɗaya ba; yana aljihuna.
—Did you leave the key in the car or in the office? —I did not leave it in either place; it is in my pocket. (to one male)
An open question such as Ina ka ajiye makullin? “Where did you leave the key?” does not restrict the answer to two locations. Choose the question type that matches what is genuinely known.
Keep syntactic ko separate from lexicalized ko-words
The coordinator in shayi ko kofi is a separate word because it joins two alternatives. Nigerian Standard spelling writes established indefinites as single lexical items: kowa “everyone/anyone,” komai or kome “everything/anything,” ko’ina “everywhere/anywhere,” koyaushe “always/whenever,” and determiners such as kowane, kowace, and kowaɗanne. Their contextual readings are developed in Free-Choice Indefinites with ko.
Kowa zai sha shayi ko kofi.
Everyone will drink tea or coffee.
Za mu iya haɗuwa ko’ina, amma mu haɗu a nan ko a kasuwa?
We can meet anywhere, but should we meet here or at the market?
The first sentence contains lexical kowa plus syntactic ko. Do not write ko wa for “everyone/anyone” or ko me for “everything/anything.” Their free-choice or negative-existential readings come from context, not from splitting the spelling.
A natural dialogue
—Za mu aika kayan yau ko gobe? —Gobe. —Da safe ko da yamma? —Da safe ya fi. —To, Musa ne zai kai su, ko direban kamfani ne? —Direban kamfani ne zai kai su.
—Will we send the goods today or tomorrow? —Tomorrow. —In the morning or in the evening? —Morning is better. —Then will Musa take them, or will the company driver? —The company driver will take them.
Each answer selects an alternative rather than saying only i. The last answer uses ne because direban kamfani is the focused masculine subject.
Practice
Turn each pair into one natural choice question.
- shayi / kofi → Za ka sha shayi ko kofi?
- yau / gobe → Za ku dawo yau ko gobe?
- Amina / Hauwa as caller → Amina ce ta kira, ko Hauwa ce?
- ta waya / ta imel → Kin aika shi ta waya ko ta imel?
- Reject both Tuesday and Wednesday → Ba ɗaya ba; Alhamis ya fi mini.
Common Mistakes
1. Answering a genuine choice with yes
❌ —Za ka sha shayi ko kofi? —I.
Incomplete for the intended alternative question; yes does not choose a drink.
✅ —Za ka sha shayi ko kofi? —Kofi.
—Will you drink tea or coffee? —Coffee.
2. Treating final ko as a second alternative
❌ —Za ka zo, ko? —Yau.
Incorrect response pairing for the intended choice: final ko is only a confirmation-seeking tag, so ‘today’ was not offered as an alternative.
✅ Za ka zo yau ko gobe?
Will you come today or tomorrow? (two overt alternatives)
3. Keeping plain TAM in an explicit focus correction
❌ Ba shayi ba ne yaran sun saya; kofi ne.
Incorrect — the focused object requires relative completive suka in the background.
✅ Ba shayi ba ne yaran suka saya jiya; kofi ne.
It was not tea that the children bought yesterday; it was coffee.
4. Making ne/ce agree with the wrong candidate
❌ Amina ne ta kira, ko Hauwa ne?
Incorrect standard focus agreement with feminine singular names.
✅ Amina ce ta kira da safe, ko Hauwa ce?
Was it Amina who called in the morning, or was it Hauwa?
5. Splitting a lexicalized indefinite
❌ Ko wa zai iya zaɓar shayi ko kofi.
Incorrect Nigerian Standard spelling for ‘anyone/everyone.’
✅ Kowa zai iya zaɓar shayi ko kofi.
Anyone can choose tea or coffee.
Key Takeaways
- Syntactic ko joins overt alternatives; a genuine choice question expects a selected candidate.
- Initial ko can introduce a polar question, and final ko? can seek confirmation; neither automatically supplies two alternatives.
- In-situ alternatives can remain in a plain clause, while an explicit focus construction selects relative TAM.
- Ne/ce mark focused identification and agree with the focused expression; they are not ordinary verbs.
- Alternative questions restrict the candidate set but allow “neither” as a truthful answer.
- Write lexicalized kowa, komai/kome, ko’ina, koyaushe, kowane/kowace/kowaɗanne as single words; keep coordinating ko separate.
Related Topics
- Plain and Relative TAM FormsA1 — Choose plain Hausa completive and continuative forms for neutral clauses, and relative forms for focus, constituent questions, and relative clauses.
- Relative Completive in Focus ConstructionsB2 — Use the relative completive in explicit Hausa focus constructions while separating focus, polarity, aspect, and time reference.
- Relative Continuative in Focus ConstructionsB2 — Build Hausa subject, object, time, and place focus with ne or ce and the relative-continuative subject forms.
- Constituent Negation and ContrastB2 — Negate one participant, time, place, or description without automatically denying the entire Hausa event.
- Free-Choice Indefinites with koB1 — Use joined Hausa indefinites for free choice while distinguishing their universal, negative, and concessive readings from genuinely separate ko.
- Kowa and Komai: Anyone and AnythingB1 — Learn how joined kowa and komai receive everyone/everything, anyone/anything, and whoever/whatever readings from their clause environment.