There is no single Hausa frame that replaces English “is not + adjective.” The negative depends on how Hausa expresses the positive property. A true adjective uses ba + adjective + ba ne/ce; a quality noun in the “have” construction uses ba shi/ta/su da; a result expressed with yi takes verbal negation.
This choice is grammatical, not merely stylistic. English hides the difference because it uses be in “the room is not big,” “the rope is not strong,” and “the repair did not turn out well.” Hausa first chooses the property construction and then negates that construction. The forms here are neutral Nigerian Standard Hausa in (informal) speech and (formal) writing.
The positive systems are introduced separately under Predicative Quality with ne and ce and Predicative Quality with yana da and tana da. This page shows why their negatives cannot be collapsed into one formula.
True adjectives: ba ... ba ne or ba ... ba ce
With a true predicate adjective, the first ba precedes the adjective and the second ba follows it. Clause-final ne/ce comes after that second ba.
| Subject class | Frame | Example |
|---|---|---|
| masculine singular | subject + ba + masculine adjective + ba ne | Gidan ba babba ba ne. |
| feminine singular | subject + ba + feminine adjective + ba ce | Motar ba sabuwa ba ce. |
| plural | subject + ba + plural adjective + ba ne | Gidajen ba sababbi ba ne. |
Gidan ba babba ba ne, duk da haka falonsa yana da faɗi.
The house is not big, though its sitting room is spacious.
Motar ba sabuwa ba ce; mun saye ta shekaru shida da suka wuce.
The car is not new; we bought it six years ago.
Gidajen ba sababbi ba ne, amma an gyara su sosai.
The houses are not new, but they have been renovated thoroughly.
Musa ba gajere ba ne; ni ne kawai na fi shi tsawo.
Musa is not short; I am simply taller than him.
Zainab ba gajeriya ba ce, amma ƙanwarta ta fi ta tsawo.
Zainab is not short, but her younger sister is taller than her.
Yaran ba ƙanana ba ne; za su iya tafiya da kansu.
The children are not little; they can go by themselves.
Agreement survives negation. Feminine Zainab still selects gajeriya ... ce, and plural yara still selects ƙanana ... ne. The two ba elements reject the property; they do not erase the gender and number structure around it.
The negative is predicative, not an attributive adjective
The attributive phrase ƙaramin gida means “a small house.” The negative statement Gidan ba babba ba ne means “the house is not big.” English can put “not very big” before a noun, but Hausa does not create an ordinary linked adjective by attaching ba to babba.
Mun zaɓi ƙaramin gida kusa da makaranta.
We chose a small house near the school.
Gidan da muka zaɓa ba babba ba ne.
The house we chose is not big.
Waccan tsohuwar mota ba baƙa ba ce; shuɗiya ce.
That old car is not black; it is blue.
The adjective inside waccan tsohuwar mota is attributive and linked. The color in ba baƙa ba ce is the predicate and remains in its free feminine form. Do not add an attributive -r merely because a feminine noun is being described.
Quality nouns: ba shi da, ba ta da, ba su da
Quality nouns such as ƙarfi “strength,” kaifi “sharpness,” kyau “beauty/goodness,” and wayo “cleverness” use the positive frame yana/tana/suna da. Their negative does not surround that positive frame with ba ... ba. It selects the negative subject series:
| Positive | Negative | Natural meaning |
|---|---|---|
| yana da ƙarfi | ba shi da ƙarfi | he/it is not strong |
| tana da ƙarfi | ba ta da ƙarfi | she/it is not strong |
| suna da ƙarfi | ba su da ƙarfi | they are not strong |
Wannan zaren ba shi da ƙarfi; zai tsinke da sauri.
This thread is not strong; it will snap quickly.
Sabuwar wuƙar ba ta da kaifi yadda ya kamata.
The new knife is not as sharp as it should be.
Fitilun ɗakin ba su da haske sosai da dare.
The room's lamps are not very bright at night.
Yaron ba shi da wayo kamar yadda kake zato.
The boy is not as clever as you think.
Yarinyar ba ta da tsoro ko kaɗan.
The girl is not afraid at all.
Here shi, ta, and su belong to the negative subject–TAM series. They agree with the subject, while the quality noun remains unchanged. There is normally no second clause-final ba in this negative ...na da construction.
This produces a useful three-way match:
Mutumin ba dogo ba ne.
The man is not tall. (true adjective)
Mutumin ba shi da tsawo.
The man is not tall; he does not have height. (quality noun)
Both can describe stature, but their internal grammar differs. Dogo agrees and takes ne; tsawo is a noun after negative ba shi da.
Resulting conditions with yi: bai yi ... ba
When yi presents a result, evaluation, or change, it is an ordinary verbal predicate. Its negative uses the appropriate negative completive form plus clause-final ba: bai yi for masculine singular, ba ta yi for feminine singular, and ba su yi for plural.
Gyaran bai yi kyau ba; har yanzu ruwan yana zuba.
The repair did not turn out well; water is still leaking.
Rigar ba ta yi kyau a jikina ba, sai na mayar da ita.
The gown did not look good on me, so I returned it.
Hotunan ba su yi kyau ba saboda ɗakin ya yi duhu.
The photographs did not come out well because the room was dark.
Compare Motar ba ta da kyau “the car is not attractive/good” with Gyaran motar bai yi kyau ba “the car repair did not turn out well.” The first denies possession of a quality; the second evaluates a result. English was not good can translate either, so the intended viewpoint must determine the Hausa construction.
Demonstratives and agreement under negation
A demonstrative helps identify the subject but does not determine all later agreement by itself. Near singular wannan can refer to a masculine or feminine noun, so the noun's class controls the negative frame.
Wannan littafi ba sabo ba ne; na bara ne.
This book is not new; it is last year's.
Wannan jarida ba sabuwa ba ce; ta jiya ce.
This newspaper is not new; it is yesterday's.
Waɗannan littattafai ba sababbi ba ne; an yi amfani da su.
These books are not new; they have been used.
The same principle applies to the negative possessive frame:
Wannan igiya ba ta da ƙarfi.
This rope is not strong.
Wannan akwati ba shi da nauyi; zan ɗauke shi ni kaɗai.
This box is not heavy; I will carry it by myself.
English this offers no gender clue. Hausa ta with feminine igiya and shi with masculine akwati make the contrast overt.
Scope: denying a property is not naming its opposite
“Not big” does not necessarily mean “small,” and “not new” does not necessarily mean “old.” The negative leaves a middle range open. Use an opposite adjective only when you intend the stronger positive claim.
Ɗakin ba babba ba ne, amma ba ƙarami ba ne kuma.
The room is not big, but it is not small either.
Motar ba sabuwa ba ce, amma ba tsohuwa sosai ba ce.
The car is not new, but it is not very old either.
This is especially important in polite assessments. Abincin ba shi da daɗi sosai “the food is not very tasty” is weaker than a blunt positive assertion that it is bad. Register and intonation affect politeness, but the logical difference is grammatical.
Practice
Negate each positive statement without changing its property construction.
- Hanyar doguwa ce. → Hanyar ba doguwa ba ce.
- Yaran ƙanana ne. → Yaran ba ƙanana ba ne.
- Wuƙar tana da kaifi. → Wuƙar ba ta da kaifi.
- Gyaran ya yi kyau. → Gyaran bai yi kyau ba.
A ganina, shawarar ba mummuna ba ce, amma ba ta da amfani a yanzu.
In my view, the proposal is not bad, but it is not useful now.
Common Mistakes
1. Dropping the inner negative ba with an adjective
❌ Gidan ba babba ne.
Incorrect — a negative adjective predicate requires ba around the adjective.
✅ Gidan ba babba ba ne.
The house is not big.
2. Losing feminine agreement
❌ Motar ba sabo ba ne.
Incorrect — feminine mota requires sabuwa and ce.
✅ Motar ba sabuwa ba ce.
The car is not new.
3. Negating the positive yana da frame mechanically
❌ Wannan zare ba yana da ƙarfi ba.
Incorrect — use the negative subject series with da.
✅ Wannan zare ba shi da ƙarfi.
This thread is not strong.
4. Treating a quality noun as an agreeing adjective
❌ Wuƙar ba kaifi ba ce.
Incorrect for the ordinary property reading — kaifi is a quality noun.
✅ Wuƙar ba ta da kaifi.
The knife is not sharp.
Key Takeaways
- True adjectives use ba + adjective + ba ne/ce, with adjective and copula agreement intact.
- Quality nouns use ba shi/ta/su da + noun and normally have no second final ba.
- Resultative yi is verbal and takes verbal negation plus clause-final ba.
- Predicate adjectives have free forms; do not import an attributive linker into the negative predicate.
- “Not X” leaves room between X and its opposite; it does not automatically assert the opposite property.
Related Topics
- Predicative Quality with ne and ceA2 — How agreeing Hausa adjectives form present-time quality predicates with clause-final ne and ce.
- Predicative Quality with yana da and tana daA2 — How Hausa describes properties through continuative agreement plus da and a quality noun.
- Predicative Quality with yiA2 — Use agreeing forms of yi with quality nouns to describe a change, resulting condition, or assessed outcome.
- How Hausa Expresses PropertiesA1 — Choose among true adjectives, mai or masu phrases, quality nouns, and verbal expressions when describing people and things in Hausa.
- Masculine and Feminine Adjective FormsA1 — Match Hausa singular adjectives to masculine and feminine nouns in linked attributive phrases and in predicates with ne and ce.
- Plural Adjective FormsA1 — Use Hausa plural adjective stems with plural nouns before the noun, after it, and in property predicates.