A prospective construction views an event from the phase immediately before it begins: the meeting is about to start, rain is threatening, or someone is on the point of falling. Standard Swahili expresses this viewpoint analytically, most clearly with kuwa karibu ku-, and in suitable contexts with kutaka ku-. Time expressions such as punde, sasa hivi, and muda si mrefu can reinforce imminence, but there is no dedicated “about-to” TAM slot.
These constructions are current Standard Swahili. Kuwa karibu ku- is neutral in (informal) and (formal) use. Prospective kutaka ku- is strongly context-dependent and especially natural in (informal) descriptions of weather, machines, involuntary reactions, and other events whose onset is visibly near.
The main builds
| Expression | Complete verb analysis | Reading |
|---|---|---|
| mkutano uko karibu kuanza | u-ko + ku-anz-a | the meeting is about to start |
| tulikuwa karibu kuondoka | tu-li-ku-w-a + ku-ondok-a | we were about to leave |
| tutakuwa karibu kumaliza | tu-ta-ku-w-a + ku-maliz-a | we will be close to finishing |
| hauko karibu kuanguka | ha-u-ko + ku-anguk-a | it is not about to fall |
| mvua inataka kunyesha | i-na-tak-a + ku-nyesh-a | it looks about to rain |
| mtoto anataka kulia | a-na-tak-a + ku-li-a | the child wants/is about to cry |
| gari linakaribia kuzima | li-na-karibi-a + ku-zim-a | the car is close to stalling |
| hataki kuondoka | ha-tak-i + ku-ondok-a | he/she does not want to leave |
In every row, the agreeing finite predicate is complete before the infinitive begins. The prospective meaning comes from the relation between predicates and context, not from moving ku- or a time word into the finite verb.
Kuwa karibu ku-: the clearest “about to” frame
The pattern is an agreeing form of kuwa or a current copular form + karibu + infinitive ku-. Literally, the subject is “near to” the event. The subject and time are marked on kuwa or the copula; the projected event stays infinitival.
Mkutano uko karibu kuanza; tafadhali zima simu yako.
The meeting is about to start; please turn off your phone.
Class 3 mkutano selects current uko. Infinitive ku-anz-a has no separate subject marker because its understood subject is the meeting.
Tulikuwa karibu kuondoka ndipo Amina akatupigia simu.
We were about to leave when Amina called us.
Past tu-li-ku-w-a places the prospective phase in the past. The call can interrupt departure, showing why “was about to” does not entail that leaving occurred.
Mwisho wa wiki tutakuwa karibu kumaliza ukarabati wa paa.
By the end of the week we will be close to finishing the roof repairs.
Future tu-ta-ku-w-a locates closeness at a later reference point. Depending on the event and context, “close to finishing” may be a better translation than “about to finish.”
Mti huu hauko karibu kuanguka, lakini matawi mawili yanahitaji kukatwa.
This tree is not about to fall, but two branches need to be cut.
Current negative class 3 ha-u-ko becomes hauko. The negative belongs on the copular form, not on karibu or the infinitive.
For the literal spatial and near-miss uses of karibu, see future and proximity with karibu.
Kutaka ku-: desire or impending onset
The ordinary lexical meaning of kutaka is “want.” With an intentional animate subject, that is the default interpretation.
Amina anataka kuondoka mapema ili awahi treni.
Amina wants to leave early so that she can catch the train.
Because Amina can form an intention and the purpose clause explains it, a-na-tak-a ku-ondok-a expresses desire, not “is about to leave.”
With weather, an inanimate subject, a malfunctioning machine, or an involuntary bodily reaction, desire is implausible. The same shape can then signal an event whose onset appears imminent.
Anga limekuwa jeusi; mvua inataka kunyesha muda wowote.
The sky has gone dark; it looks as though it is about to rain at any moment.
Class 9 i-na-tak-a cannot plausibly mean that rain has a wish. Dark clouds and muda wowote force the prospective reading.
Punguza mwendo; injini inataka kuzima kila tukisimama.
Slow down; the engine is on the verge of stalling whenever we stop.
The mechanical event is nonvolitional. I-na-tak-a ku-zim-a is consequently understood as impending stalling.
With an animate subject and an involuntary predicate, both readings or nuances may remain available:
Mtoto anataka kulia; mrudishie kichezeo chake.
The child is about to cry; give her toy back.
The observable situation favors impending crying. Out of context, however, the same words can be heard as “the child wants to cry.” If ambiguity matters, use mtoto yuko karibu kulia for an unambiguous prospective or add clear evidence such as machozi yamemjaa machoni “his/her eyes have filled with tears.”
Karibia and imminent-time vocabulary
Finite -karibia “approach, be close to” also takes an infinitive and agrees normally. It often gives an unambiguous approach-to-onset reading.
Gari linakaribia kuzima; tafuta mahali salama pa kusimama.
The car is close to stalling; find a safe place to stop.
Class 5 li-na-karibi-a agrees with gari. This analytic sequence stays two words: linakaribia kuzima.
Time vocabulary can strengthen or supply imminence:
- punde — shortly/soon, neutral and frequent in (formal) prose;
- sasa hivi — right now/any moment now, common in (informal) speech;
- muda si mrefu — before long, neutral;
- bado kidogo — just a little longer/very nearly, especially (informal);
- muda wowote — at any moment, neutral.
Treni itaondoka punde, kwa hiyo abiria wote waingie sasa.
The train will leave shortly, so all passengers should board now.
Future i-ta-ondok-a locates departure later; punde makes the interval short. This is imminent future, but not the same grammatical build as iko karibu kuondoka.
Bado kidogo tutafika kileleni; msikate tamaa.
We are almost at the summit; don't give up.
The (informal) phrase bado kidogo portrays only a small remaining interval. Future tu-ta-fik-a still carries agreement and TAM in the ordinary template.
Prospective, future, and intention are different
English “be going to” is ambiguous between prediction, intention, motion, and imminent evidence. Swahili chooses constructions according to meaning.
| Swahili | Core claim |
|---|---|
| Nitaondoka kesho. | future: I will leave tomorrow |
| Ninaenda kununua dawa. | motion with purpose: I am going to buy medicine |
| Nataka kuondoka mapema. | desire/intention: I want to leave early |
| Niko karibu kuondoka. | prospective: I am about to leave |
Nitaondoka kesho asubuhi, si sasa hivi.
I will leave tomorrow morning, not right now.
The future does not imply imminence. Conversely, niko karibu kuondoka need not promise eventual departure if something intervenes. Compare future -ta- and motion used for intention.
Negation exposes the kutaka ambiguity
Negative hataki ku- normally means “does not want to,” because it is the regular present negative of lexical kutaka. It is not a reliable way to say “is not about to.” Use a negative proximity construction instead.
Amina hataki kuondoka bado; anasubiri rafiki yake.
Amina does not want to leave yet; she is waiting for her friend.
Present negative ha-tak-i replaces affirmative a-na-tak-a. The desire is negated.
Amina hayuko karibu kuondoka; bado anapanga nyaraka zake.
Amina is not about to leave; she is still arranging her documents.
Negative locative hayuko directly denies proximity to departure and avoids the desire reading.
Common Mistakes
Translating every English “going to” with kwenda
❌ Mkutano unaenda kuanza sasa hivi.
Unnatural for the simple prospective meaning — motion kwenda is not the default equivalent of English 'going to.'
✅ Mkutano uko karibu kuanza; tafadhali ketini.
The meeting is about to start; please take your seats.
Making the infinitive finite
❌ Tuko karibu tunaanza mahojiano.
Incorrect — after karibu the projected event is an infinitive.
✅ Tuko karibu kuanza mahojiano ya mwisho.
We are about to begin the final interviews.
Assuming kutaka always means about to
❌ Rehema anataka kusoma riwaya hiyo sasa.
Incorrect as an automatic translation of 'Rehema is about to read' — this normally says she wants to read it.
✅ Rehema yuko karibu kuanza kusoma riwaya hiyo.
Rehema is about to start reading that novel.
Negating desire when proximity is meant
❌ Jengo halitaki kuanguka.
Misleading for 'the building is not about to collapse' — it personifies the building as not wanting to fall.
✅ Jengo haliko karibu kuanguka kulingana na ripoti ya wahandisi.
The building is not about to collapse according to the engineers' report.
Moving punde into the verb template
❌ Treni ipundeondoka.
Incorrect — punde is an independent time word.
✅ Treni itaondoka punde; turudi jukwaani.
The train will leave shortly; let's return to the platform.
Key Takeaways
Prospective aspect views an event just before onset. Use agreeing kuwa or a current copula + karibu + infinitive for the clearest “about to” construction. Interpret kutaka ku- as prospective only when subject type and context make desire unlikely; otherwise it means “want to.” Words such as punde and sasa hivi add imminence outside the stable verb template, while future -ta- by itself does not mean “about to.”
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