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To function in Irish (feidhmigh): Meaning, Conjugation, Examples

Other uses of ‘feidhmigh’: act · exercise

The Irish for to function is feidhmigh; ag feidhmiú is functioning.
Updated October 2026Report a mistake

How to say “to function” in Irish

Irish:
feidhmigh
English:
to function, act, exercise
Word type:
verb, second-conjugation
Verbal noun:
feidhmiú (ag feidhmiú, functioning)
Verbal adjective:
feidhmithe
Pronunciation:
“FAY-mig”  /fʲeːmʲiɟ/

What does “feidhmigh” mean?

“Feidhmigh” has three alternative meanings. The most common comes first.

to function
To work or operate, as a machine, system or organisation does.Also: operate, work, run.
2 other meanings: act or exercise
2to act
To act in a role or capacity, such as acting as chairperson or officiating.Also: act as, serve as, officiate.
3to exercise
To use or put into effect a power, right or rule.Also: apply, implement, enforce, execute.

“Feidhmigh” in the different tenses

Every form follows An Caighdeán Oifigiúil.

Aimsir Chaite (Past)

PersonPositiveNegativeQuestion
mé (I)D'fheidhmigh méI functionedNíor fheidhmigh méI did not functionAr fheidhmigh mé?Did I function?
tú (you)D'fheidhmigh túYou functionedNíor fheidhmigh túYou did not functionAr fheidhmigh tú?Did you function?
sé / sí (he / she)D'fheidhmigh sé / síHe functionedNíor fheidhmigh sé / síHe did not functionAr fheidhmigh sé / sí?Did he function?
sinn (we)D'fheidhmíomarWe functionedNíor fheidhmíomarWe did not functionAr fheidhmíomar?Did we function?
sibh (you, plural)D'fheidhmigh sibhYou functionedNíor fheidhmigh sibhYou did not functionAr fheidhmigh sibh?Did you function?
siad (they)D'fheidhmigh siadThey functionedNíor fheidhmigh siadThey did not functionAr fheidhmigh siad?Did they function?
saorbhriathar (autonomous)FeidhmíodhNíor feidhmíodhAr feidhmíodh?

Aimsir Láithreach (Present)

PersonPositiveNegativeQuestion
mé (I)FeidhmímI functionNí fheidhmímI do not functionAn bhfeidhmím?Do I function?
tú (you)Feidhmíonn túYou functionNí fheidhmíonn túYou do not functionAn bhfeidhmíonn tú?Do you function?
sé / sí (he / she)Feidhmíonn sé / síHe functionsNí fheidhmíonn sé / síHe does not functionAn bhfeidhmíonn sé / sí?Does he function?
sinn (we)FeidhmímidWe functionNí fheidhmímidWe do not functionAn bhfeidhmímid?Do we function?
sibh (you, plural)Feidhmíonn sibhYou functionNí fheidhmíonn sibhYou do not functionAn bhfeidhmíonn sibh?Do you function?
siad (they)Feidhmíonn siadThey functionNí fheidhmíonn siadThey do not functionAn bhfeidhmíonn siad?Do they function?
saorbhriathar (autonomous)FeidhmítearNí fheidhmítearAn bhfeidhmítear?

Aimsir Fháistineach (Future)

PersonPositiveNegativeQuestion
mé (I)Feidhmeoidh méI will functionNí fheidhmeoidh méI will not functionAn bhfeidhmeoidh mé?Will I function?
tú (you)Feidhmeoidh túYou will functionNí fheidhmeoidh túYou will not functionAn bhfeidhmeoidh tú?Will you function?
sé / sí (he / she)Feidhmeoidh sé / síHe will functionNí fheidhmeoidh sé / síHe will not functionAn bhfeidhmeoidh sé / sí?Will he function?
sinn (we)FeidhmeoimidWe will functionNí fheidhmeoimidWe will not functionAn bhfeidhmeoimid?Will we function?
sibh (you, plural)Feidhmeoidh sibhYou will functionNí fheidhmeoidh sibhYou will not functionAn bhfeidhmeoidh sibh?Will you function?
siad (they)Feidhmeoidh siadThey will functionNí fheidhmeoidh siadThey will not functionAn bhfeidhmeoidh siad?Will they function?
saorbhriathar (autonomous)FeidhmeofarNí fheidhmeofarAn bhfeidhmeofar?

Modh Coinníollach (Conditional)

PersonPositiveNegativeQuestion
mé (I)D'fheidhmeoinnI would functionNí fheidhmeoinnI would not functionAn bhfeidhmeoinn?Would I function?
tú (you)D'fheidhmeofáYou would functionNí fheidhmeofáYou would not functionAn bhfeidhmeofá?Would you function?
sé / sí (he / she)D'fheidhmeodh sé / síHe would functionNí fheidhmeodh sé / síHe would not functionAn bhfeidhmeodh sé / sí?Would he function?
sinn (we)D'fheidhmeoimisWe would functionNí fheidhmeoimisWe would not functionAn bhfeidhmeoimis?Would we function?
sibh (you, plural)D'fheidhmeodh sibhYou would functionNí fheidhmeodh sibhYou would not functionAn bhfeidhmeodh sibh?Would you function?
siad (they)D'fheidhmeoidísThey would functionNí fheidhmeoidísThey would not functionAn bhfeidhmeoidís?Would they function?
saorbhriathar (autonomous)D'fheidhmeofaíNí fheidhmeofaíAn bhfeidhmeofaí?

“Feidhmigh” in a sentence: Irish examples

Past, present, future and conditional, with a negative and a question.

D'fheidhmigh sí mar chathaoirleach ag an gcruinniú.
She acted as chairperson at the meeting.
Feidhmíonn an córas go maith anois.
The system works well now.
Ní fheidhmíonn an fón seo i gceart.
This phone doesn't work properly.
D'fheidhmeodh an t-inneall dá mbeadh ola ann.
The engine would work if it had oil.
Níor fheidhmigh an plean mar a bhí súil againn.
The plan did not work as we hoped.
An bhfeidhmíonn an scéim seo i ngach contae?
Does this scheme operate in every county?

Other verbs in Irish

More everyday Irish verbs to learn next.

To function in Irish: frequently asked questions

What is the Irish for to function?

The Irish for to function is feidhmigh (pronounced “FAY-mig”). It is a second-conjugation verb; the verbal noun is feidhmiú.

What is the verbal noun of feidhmigh?

The verbal noun of feidhmigh is feidhmiú, used after ag for the continuous: ag feidhmiú (functioning). The verbal adjective is feidhmithe.

How do you say feidhmigh in the past and the future?

Past: D'fheidhmigh mé; negative Níor fheidhmigh mé; question Ar fheidhmigh mé?. Future: Feidhmeoidh mé; negative Ní fheidhmeoidh mé; question An bhfeidhmeoidh mé?.

What is the modh coinníollach of feidhmigh?

The conditional (modh coinníollach) first person is D'fheidhmeoinn (I would function); negative Ní fheidhmeoinn; question An bhfeidhmeoinn?.

Does feidhmigh have more than one meaning?

Yes. Feidhmigh can mean to function, to act or to exercise, depending on context; the first is the most common.

How do I say 'act as' something with feidhmigh?

Use 'mar': 'feidhmigh mar rúnaí' means to act as secretary.

What is the difference between feidhmigh and oibrigh?

'Oibrigh' is the everyday word for work or operate, while 'feidhmigh' is more formal, often used of systems, laws and official roles.

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