When a noun-like direct object immediately follows a Grade 4 verb, Hausa uses the C-form. In ordinary boko the ending is still written e, as in rufe ƙofa “close a door,” but the regular spoken C-form has a short final vowel and the C-form tone melody. The visible spelling therefore tells only half the story. Review the three object environments for the general A/B/C contrast.
All examples are (neutral Nigerian Standard Hausa) unless labelled otherwise. Ordinary target sentences contain no tone or length marks; those properties occur only in the technical description.
What counts as a noun object
The C-form occurs before an ordinary noun, a full noun phrase, a proper name used as a direct object, or a demonstrative standing for a noun. “Noun object” is a syntactic category here, not simply a word ending.
| Object type | Grade 4 frame | Why C-form applies |
|---|---|---|
| common noun | rufe ƙofa | ƙofa is a direct-object noun |
| full noun phrase | rufe babbar ƙofar gidan | the whole phrase is the direct object |
| proper name | bincike Musa | Musa is a noun phrase in object position |
| demonstrative | rufe wannan | wannan patterns as noun-like, not as a core object pronoun |
Mai gadi ya rufe babbar ƙofar makarantar bayan kowa ya fita.
The guard closed the school's main gate after everyone had left.
Kwamitin ya bincike lamarin kafin ya fitar da sanarwa.
The committee investigated the matter before issuing a statement.
’Yan sanda sun bincike Musa, amma ba su sami kome a aljihunsa ba.
The police searched Musa, but found nothing in his pocket.
Ka rufe wannan; iska tana shigowa sosai.
Close this one; a lot of air is coming in.
The demonstrative wannan can translate English this or this one, but it is not a member of the special direct-object series ni, ka, ki, shi, ta, mu, ku, su. It therefore selects C, not B.
The C-form has short final e
In a technical pronunciation description (academic/pedagogical), Grade 4 A and B have long final -e with H-L-(H), while regular C has short final -e with H-L-(L). For a two-syllable verb such as rufe, A/B and C have the same broad H-L sequence, but vowel length distinguishes them. In longer verbs, the final part of the melody also differs.
| Environment | Ordinary boko | Technical property |
|---|---|---|
| A, no object follows | Ta rufe. | long -e, H-L-(H) |
| B, pronoun follows | Ta rufe ta. | long -e, H-L-(H) |
| C, noun follows | Ta rufe ƙofar. | normally short -e, H-L-(L) |
| D, indirect object follows | Ta rufe masa idanu. | long -e, H-L-(H) |
Da dare ma’aikaciyar ta rufe, amma da safe ta rufe ƙofar da makulli.
At night the employee closed up, but in the morning she locked the door. (A then C)
Ta rufe tagar, sannan ta sake buɗe ta saboda zafi.
She closed the window, then opened it again because of the heat. (C-form rufe before tagar)
A restricted long-vowel C variant is reported for some Grade 4 uses and speakers, sometimes with an intensive interpretation. It does not cancel the standard learner generalization: use the regular short C-form unless a particular lexical item and variety are independently known to preserve long -e. This variation is invisible in normal spelling.
The object must immediately follow
Form selection responds to the postverbal environment. If the object is fronted for focus or questioning, no noun object follows the verb and the verb uses A, even though the event remains semantically transitive.
Babbar ƙofar ce mai gadi ya rufe, ba ƙaramar ba.
It was the main gate that the guard closed, not the small one. (fronted object; A-form environment)
Wace hanya suka rufe saboda gyaran gada?
Which road did they close because of the bridge repairs? (object questioned outside the postverbal slot)
Compare the neutral answer:
Sun rufe hanyar zuwa kasuwa saboda gyaran gada.
They closed the road to the market because of the bridge repairs. (postverbal noun phrase; C-form)
English keeps close unchanged in all three sentences. Hausa uses the surface position of the object as part of verb morphology. Meaning alone does not select C.
TAM does not choose the C-form
The same C-form follows completive, future, habitual, and subjunctive markers because the same noun object remains adjacent.
An rufe kasuwar da wuri jiya.
The market was closed early yesterday. (impersonal completive)
Za a rufe kasuwar da wuri gobe.
The market will be closed early tomorrow. (future)
Akan rufe kasuwar da ƙarfe shida a lokacin damina.
The market is usually closed at six during the rainy season. (habitual)
A rufe kasuwar kafin ruwan sama ya fara.
The market should be closed before the rain starts. (impersonal subjunctive directive)
The preverbal complex expresses TAM and subject agreement. The verb’s C-shape comes from the following noun object. Grade 4’s frequent sense of endpoint or total effect is lexical aspect, not a substitute for TAM marking.
The continuative can look identical
Regular Grade 4 verbs take weak -wa verbal nouns: rufewa “closing,” yankewa “severing,” bincikewa “investigating.” With no object, the full -wa form appears. Before a local direct object, the construction instead uses the matching C-form—traditionally described as “dropping -wa.” Consequently, tana rufe ƙofa and finite ta rufe ƙofa contain the same object-conditioned verb shape even though their TAM constructions differ.
Ta rufe ƙofar da ƙarfe shida jiya.
She closed the door at six yesterday. (finite Grade 4 C-form)
Tana rufe ƙofar da ƙarfe shida kullum.
She closes the door at six every day. (continuative marker plus the object-conditioned C-form)
The contrast lies in the full construction, not in an English-style infinitive. Tana licenses a verbal noun; ta in the completed-event reading licenses a finite verb.
Noun objects help reveal Grade 4 meaning
Grade 4 often adds an endpoint or total-object interpretation to a related lower-grade form. Compare Grade 1 yanka “cut” and Grade 4 yanke “cut through, sever.”
Mai girki ta yanka nama ƙanana-ƙanana.
The cook cut the meat into small pieces. (Grade 1 yanka)
Ma’aikacin ya yanke igiyar da ta tare hanya.
The worker severed the rope that was blocking the road. (Grade 4 yanke)
Likewise, Grade 2 sayi kaya means “buy goods,” while Grade 4 saye kayan duka can mean “buy up all the goods.” The contrast is conventional and lexical. Not every related pair differs in precisely the same way, and some common Grade 4 verbs, such as rufe, function as ordinary dictionary bases.
The same verb in all four environments
Use rufe to keep object form separate from meaning:
- Na rufe. — A: nothing follows; the closed thing may be understood.
- Na rufe akwatin. — C: noun object akwatin follows.
- Na rufe shi. — B: direct-object pronoun shi follows.
- Na rufe masa akwatin. — D: indirect masa is adjacent; akwatin is the later theme.
Na rufe masa akwatin domin kada kayan su zube.
I closed the box for him so that the contents would not spill.
In D, the later noun theme does not reach across masa to trigger C. The closest licensed complement determines the environment.
Practice
Choose C where an object remains postverbal: (1) Sun rufe _ + shago → Sun rufe shago; (2) the shop is what they closed → Shagon ne suka rufe (A environment); (3) they closed it → Sun rufe shi (B); (4) they closed the shop for him → Sun rufe masa shagon (D). Explain why ordinary boko writes rufe in every answer even though the spoken form is not invariant.
Common Mistakes
1. Using the B analysis before a demonstrative.
❌ Ka rufe wannan.
Incorrect delivery if rufe is given the long B-form ending—wannan is noun-like and selects C.
✅ Ka rufe wannan kafin iska ta ƙaru.
Close this one before the wind gets stronger. (C-form)
2. Keeping C when the object is fronted.
❌ Wannan ne na rufe.
Incorrect delivery if rufe is given the short C-form ending—no object follows the verb in this focus construction.
✅ Wannan ne na rufe; ɗayan a buɗe yake.
This is the one I closed; the other is open. (A-form environment)
3. Choosing the form from past or future time.
❌ Gobe za su rufa hanyar.
Incorrect for ‘close the road’—future time does not change Grade 4 rufe into Grade 1 rufa.
✅ Gobe za su rufe hanyar na tsawon awa biyu.
Tomorrow they will close the road for two hours.
4. Treating every following noun as a direct object.
❌ Suka rufe shi idanu kafin ya ga kyautar.
Incorrect for ‘they covered his eyes’—shi cannot replace indirect masa before the later theme idanu.
✅ Suka rufe masa idanu kafin ya ga kyautar.
They covered his eyes before he saw the present. (D-form environment)
Key Takeaways
- Grade 4 C occurs before ordinary nouns, names, full noun phrases, and noun-like demonstratives.
- Regular C has short final -e and H-L-(L), although boko simply writes e.
- A fronted or questioned object leaves an A-form environment at the verb.
- TAM markers do not choose C; the adjacent object does.
- Before an object, the continuative uses the matching verb form (traditionally described as -wa deletion), producing similar-looking finite and continuative strings.
- A preceding indirect object selects D even when a noun theme comes later.
Related Topics
- Grade 4: Core Form PatternB1 — Recognize Grade 4's e-final form, its hidden A/B/C/D contrasts, and its frequent totality or result meaning.
- Grade 4 before Pronoun ObjectsB1 — Use the long-vowel Grade 4 B-form before the core direct-object pronouns and distinguish it from C and D.
- The Three Object EnvironmentsA2 — Choose Hausa verb forms by whether no object, a noun direct object, or a direct-object pronoun immediately follows, while treating indirect objects separately.
- Base Form, Before-Noun Form, and Before-Pronoun FormA2 — Relate practical Hausa verb-form labels to the traditional A, B, and C object environments without confusing citation form, tense, and verbal nouns.
- Noun Objects versus Direct-Object PronounsA2 — Choose the correct Hausa verb form by distinguishing noun-like direct objects from the special postverbal direct-object pronoun series.
- Grade 1 before Noun ObjectsB1 — Use the short-final Grade 1 C-form before noun-like direct objects while preserving standard boko spelling and distinguishing other complements.