Hausa uses mai + noun or noun-like expression for a singular person characterized by possessing, doing, handling, or regularly being associated with something. Its plural counterpart is masu: mai gyara “repairer,” masu gyara “repairers.” This pattern is highly productive, but it is not a mechanical translation of every English word ending in -er: the complement must be an attested Hausa noun, verbal noun, or established phrase, and many occupations already have lexical names.
The wider agreement system is introduced on the page about gender of people and kinship terms. The present page concentrates on the word-forming contribution of mai/masu.
All unlabelled examples are (neutral Nigerian Standard Hausa). Ordinary boko retains ɓ, ɗ, ƙ and apostrophes without tone or vowel-length marks. Standard spelling writes mai and masu separately from their following complement.
The core pattern
The pattern takes a nominal input and produces a person-denoting expression. With an activity noun or verbal noun, the person is interpreted as someone who characteristically performs the activity.
| Input | Singular agent | Plural agent | Usual sense |
|---|---|---|---|
| gyara “repair” | mai gyara | masu gyara | repairer(s) |
| sayarwa “selling” | mai sayarwa | masu sayarwa | seller(s) |
| bincike “research/investigation” | mai bincike | masu bincike | researcher(s)/investigator(s) |
These are three transparent formations: the meaning of the whole follows from the meaning of the complement and the “person characterized by” function of mai/masu.
Mai gyara ya ce famfon zai sake aiki kafin yamma.
The repairer said that the tap would work again before evening.
Masu sayarwa sun rufe rumfunansu saboda ruwan sama.
The sellers closed their stalls because of the rain.
Mai bincike ta tattauna da iyalan da abin ya shafa.
The researcher spoke with the families affected by the matter.
In the last example, ta shows that the singular researcher is female. Mai itself is not replaced by a special feminine form. Number, however, is overt: one agent takes mai, more than one takes masu.
What can follow mai and masu?
The complement may be an ordinary noun. The resulting expression can mean an owner, bearer, user, specialist, or person habitually associated with that noun.
Mai shago tana karɓar kuɗi ta waya yanzu.
The shopkeeper is accepting mobile payment now.
Masu mota su bar hanyar shiga asibiti a buɗe.
Car owners should leave the hospital entrance clear.
Yaron mai haƙuri ya jira har likita ya kira sunansa.
The patient boy waited until the doctor called his name.
The semantic range is wider than English owner. Mai shago can be the person responsible for or operating a shop; mai haƙuri is a person characterized by patience. Context decides which relationship is relevant.
An activity complement can be expanded by its own dependent phrase. That expansion obeys the grammar of the activity noun:
Mun kira mai gyaran na'urar sanyaya ɗaki da safe.
We called the air-conditioner repairer in the morning.
Masu kula da yara za su halarci taron ranar Asabar.
The people responsible for the children will attend the meeting on Saturday.
Mai gyaran na'ura contains linked gyaran because the repair has an object, “repair of the appliance.” Masu kula da yara preserves the established frame kula da “care for/look after.” These adjustments belong inside the complement; they are not arbitrary changes caused by mai.
Agent, profession, or temporary role?
The construction can denote a recognized occupation, a habitual activity, or a person filling a role in the current situation. The surrounding sentence supplies the time scale.
A kasuwar nan, Safiya mai sayar da kayan miya ce.
At this market, Safiya is a seller of cooking ingredients.
A yau ni ne mai karɓar baƙi a ofis.
Today I am the person receiving visitors at the office.
The first is a stable livelihood; the second can be a one-day assignment. English often uses the same -er noun for both, so learners should not assume that mai itself encodes permanence.
In an attributive phrase, mai + complement follows a head noun and characterizes it:
Mun ɗauki ma'aikaci mai iya gyaran injin ruwa.
We hired a worker who knows how to repair a water pump.
Here mai iya... is not the head noun “an expert” by itself; it modifies ma'aikaci. The construction is flexible enough to express “one who has the ability to...,” but long descriptions may be clearer as relative clauses.
Contrast with the base
The base names the activity or property; the mai/masu expression names its characteristic participant.
Gyaran famfon ya ɗauki awa biyu, mai gyaran kuma ya koma gida da yamma.
The tap repair took two hours, and the repairer went home in the evening.
In gyaran famfon, gyara names the activity; mai gyaran names the participant characteristically associated with that activity. The participant marker changes the output from an activity noun to a human-denoting nominal expression.
Mai is productive, but lexical words still matter
Hausa also has inherited or lexical agent nouns such as manomi “farmer,” maƙeri “blacksmith,” maɗinki “tailor,” malami “teacher/scholar,” and ma'aikaci “worker/employee.” These are single words with their own feminine and plural behavior; they are not built freely in speech by placing mai before a bare English-style verb.
Manomi ne, kuma shi mai noma ne tun yana saurayi.
He is a farmer, and he has been someone engaged in farming since he was young.
Manomi is the lexical occupation. Mai noma is transparent and can characterize anyone engaged in farming, but the two are not identical pieces of morphology. This is the pattern's important limit: productivity coexists with stored vocabulary.
An apparent form may also become lexicalized. Mai gida literally fits “one associated with/possessing a house,” but in context it can mean “householder,” “host,” or “husband.” Its interpretation cannot always be computed as simply “house owner.”
Mai gidan ya tarbe mu a ƙofar zaure.
The head of the household welcomed us at the entrance hall.
Learn such frequent combinations as lexical expressions with context, even though their structure remains recognizable.
Spelling and agreement
Write mai gyara, mai gadi, mai bincike, masu sayarwa with a space. By contrast, lexical nouns such as manomi, maƙeri, and ma'aikaci are single words. Apostrophe in ma'aikaci represents part of the established spelling and must not be dropped.
As a subject, the full expression controls ordinary agreement by gender in the singular and plural in the plural:
Mai gadin ta buɗe ƙofar bayan ta tabbatar da sunanmu.
The female guard opened the gate after confirming our name.
Masu gadin sun duba motocin kafin suka bar su su wuce.
The guards inspected the vehicles before letting them pass.
The plural expression takes sun regardless of the individual agents' genders. Hausa grammatical gender distinguishes masculine and feminine only in the singular; plural agreement is shared.
Common Mistakes
1. Using mai for a plural group
❌ Mai gyara sun iso da kayan aikinsu.
Incorrect — plural agreement requires plural masu.
✅ Masu gyara sun iso da kayan aikinsu.
The repairers arrived with their tools.
2. Inventing a separate feminine form of mai
❌ Maia bincike ta gabatar da rahoton.
Incorrect — Hausa does not form the feminine singular this way.
✅ Mai bincike ta gabatar da rahoton.
The female researcher presented the report.
3. Joining a normally spaced mai expression
❌ Maigyara ya canza tayar motar.
Incorrect spelling for the intended phrase mai gyara.
✅ Mai gyara ya canza tayar motar.
The repairer changed the car tyre.
4. Separating an established lexical agent noun
❌ Ma aikaci ya karɓi albashinsa.
Incorrect — ma'aikaci is one lexical word with an apostrophe.
✅ Ma'aikaci ya karɓi albashinsa.
The employee received his salary.
5. Copying an English verb directly after mai
❌ Mun kira mai repair domin ya duba famfon.
Incorrect — use a Hausa activity expression, not an unintegrated English verb.
✅ Mun kira mai gyara domin ya duba famfon.
We called a repairer to inspect the tap.
Key Takeaways
- Singular mai and plural masu introduce a person characterized by a noun, activity, property, or association.
- Transparent agent formations include mai gyara, mai sayarwa, and mai bincike.
- Standard spelling keeps mai/masu separate from the complement.
- A complement may retain its own linking or preposition: mai gyaran mota, masu kula da yara.
- Singular mai can refer to a man or woman; clause agreement supplies gender.
- Lexical agent nouns such as manomi, maƙeri, and ma'aikaci must be learned as words, not rebuilt mechanically.
- Frequent mai expressions can acquire conventional meanings, as with context-sensitive mai gida.
Related Topics
- Female Agent Nouns and Gender MarkingA2 — Use feminine human nouns and agreement accurately while recognizing productive -iya forms, other feminine pairings, and lexical exceptions.
- Place and Instrument NounsA2 — Recognize Hausa ma- place and instrument nouns, relate established words to verbal bases, and avoid treating the pattern as freely productive.
- Gender of People and Kinship TermsA1 — Learn how Hausa person and family nouns package natural sex, singular agreement, irregular plurals, and possessed or definite forms.
- Why Hausa Plurals Must Be Learned LexicallyA2 — Understand why Hausa plural patterns offer useful clues but cannot replace learning each noun's attested singular–plural pairing.
- da: With, By, and HavingA1 — Use Hausa da for accompaniment, instruments, means, manner, and possession without copying the many unrelated uses of English with and by.
- Relative Clauses with Plain Noun HeadsA2 — Use ordinary lexical nouns such as mutum, mota, and yara as linked heads before Hausa da-relative clauses.