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To diagnose in Irish (diagnóisigh): Meaning, Conjugation, Examples

The Irish for to diagnose is diagnóisigh; ag diagnóisiú is diagnosing.
Updated October 2026Report a mistake

How to say “to diagnose” in Irish

Irish:
diagnóisigh
English:
to diagnose
Word type:
verb, second-conjugation
Verbal noun:
diagnóisiú (ag diagnóisiú, diagnosing)
Verbal adjective:
diagnóisithe
Pronunciation:
“JEE-ag-noh-shee”  /ˈdʲiəɡn̪ˠoːʃɪ/

What does “diagnóisigh” mean?

to diagnose
To identify an illness or a problem by examining the signs and symptoms.Also: identify an illness, determine the cause.

“Diagnóisigh” in the different tenses

Every form follows An Caighdeán Oifigiúil.

Aimsir Chaite (Past)

PersonPositiveNegativeQuestion
mé (I)Dhiagnóisigh méI diagnosedNíor dhiagnóisigh méI did not diagnoseAr dhiagnóisigh mé?Did I diagnose?
tú (you)Dhiagnóisigh túYou diagnosedNíor dhiagnóisigh túYou did not diagnoseAr dhiagnóisigh tú?Did you diagnose?
sé / sí (he / she)Dhiagnóisigh sé / síHe diagnosedNíor dhiagnóisigh sé / síHe did not diagnoseAr dhiagnóisigh sé / sí?Did he diagnose?
sinn (we)DhiagnóisíomarWe diagnosedNíor dhiagnóisíomarWe did not diagnoseAr dhiagnóisíomar?Did we diagnose?
sibh (you, plural)Dhiagnóisigh sibhYou diagnosedNíor dhiagnóisigh sibhYou did not diagnoseAr dhiagnóisigh sibh?Did you diagnose?
siad (they)Dhiagnóisigh siadThey diagnosedNíor dhiagnóisigh siadThey did not diagnoseAr dhiagnóisigh siad?Did they diagnose?
saorbhriathar (autonomous)DiagnóisíodhNíor diagnóisíodhAr diagnóisíodh?

Aimsir Láithreach (Present)

PersonPositiveNegativeQuestion
mé (I)DiagnóisímI diagnoseNí dhiagnóisímI do not diagnoseAn ndiagnóisím?Do I diagnose?
tú (you)Diagnóisíonn túYou diagnoseNí dhiagnóisíonn túYou do not diagnoseAn ndiagnóisíonn tú?Do you diagnose?
sé / sí (he / she)Diagnóisíonn sé / síHe diagnosesNí dhiagnóisíonn sé / síHe does not diagnoseAn ndiagnóisíonn sé / sí?Does he diagnose?
sinn (we)DiagnóisímidWe diagnoseNí dhiagnóisímidWe do not diagnoseAn ndiagnóisímid?Do we diagnose?
sibh (you, plural)Diagnóisíonn sibhYou diagnoseNí dhiagnóisíonn sibhYou do not diagnoseAn ndiagnóisíonn sibh?Do you diagnose?
siad (they)Diagnóisíonn siadThey diagnoseNí dhiagnóisíonn siadThey do not diagnoseAn ndiagnóisíonn siad?Do they diagnose?
saorbhriathar (autonomous)DiagnóisítearNí dhiagnóisítearAn ndiagnóisítear?

Aimsir Fháistineach (Future)

PersonPositiveNegativeQuestion
mé (I)Diagnóiseoidh méI will diagnoseNí dhiagnóiseoidh méI will not diagnoseAn ndiagnóiseoidh mé?Will I diagnose?
tú (you)Diagnóiseoidh túYou will diagnoseNí dhiagnóiseoidh túYou will not diagnoseAn ndiagnóiseoidh tú?Will you diagnose?
sé / sí (he / she)Diagnóiseoidh sé / síHe will diagnoseNí dhiagnóiseoidh sé / síHe will not diagnoseAn ndiagnóiseoidh sé / sí?Will he diagnose?
sinn (we)DiagnóiseoimidWe will diagnoseNí dhiagnóiseoimidWe will not diagnoseAn ndiagnóiseoimid?Will we diagnose?
sibh (you, plural)Diagnóiseoidh sibhYou will diagnoseNí dhiagnóiseoidh sibhYou will not diagnoseAn ndiagnóiseoidh sibh?Will you diagnose?
siad (they)Diagnóiseoidh siadThey will diagnoseNí dhiagnóiseoidh siadThey will not diagnoseAn ndiagnóiseoidh siad?Will they diagnose?
saorbhriathar (autonomous)DiagnóiseofarNí dhiagnóiseofarAn ndiagnóiseofar?

Modh Coinníollach (Conditional)

PersonPositiveNegativeQuestion
mé (I)DhiagnóiseoinnI would diagnoseNí dhiagnóiseoinnI would not diagnoseAn ndiagnóiseoinn?Would I diagnose?
tú (you)DhiagnóiseofáYou would diagnoseNí dhiagnóiseofáYou would not diagnoseAn ndiagnóiseofá?Would you diagnose?
sé / sí (he / she)Dhiagnóiseodh sé / síHe would diagnoseNí dhiagnóiseodh sé / síHe would not diagnoseAn ndiagnóiseodh sé / sí?Would he diagnose?
sinn (we)DhiagnóiseoimisWe would diagnoseNí dhiagnóiseoimisWe would not diagnoseAn ndiagnóiseoimis?Would we diagnose?
sibh (you, plural)Dhiagnóiseodh sibhYou would diagnoseNí dhiagnóiseodh sibhYou would not diagnoseAn ndiagnóiseodh sibh?Would you diagnose?
siad (they)DhiagnóiseoidísThey would diagnoseNí dhiagnóiseoidísThey would not diagnoseAn ndiagnóiseoidís?Would they diagnose?
saorbhriathar (autonomous)DhiagnóiseofaíNí dhiagnóiseofaíAn ndiagnóiseofaí?

“Diagnóisigh” in a sentence: Irish examples

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

Dhiagnóisigh an dochtúir an galar go tapa.
The doctor diagnosed the disease quickly.
Diagnóisíonn sí fadhbanna leis an ríomhaire gach lá.
She diagnoses problems with the computer every day.
Diagnóiseoidh an speisialtóir é an tseachtain seo chugainn.
The specialist will diagnose it next week.
Dhiagnóiseodh tástáil fola an fhadhb.
A blood test would diagnose the problem.
Níor diagnóisíodh an tinneas in am.
The illness was not diagnosed in time.
Ar dhiagnóisigh siad an fhadhb fós?
Have they diagnosed the problem yet?

Other verbs in Irish

More everyday Irish verbs to learn next.

To diagnose in Irish: frequently asked questions

What is the Irish for to diagnose?

The Irish for to diagnose is diagnóisigh (pronounced “JEE-ag-noh-shee”). It is a second-conjugation verb; the verbal noun is diagnóisiú.

What is the verbal noun of diagnóisigh?

The verbal noun of diagnóisigh is diagnóisiú, used after ag for the continuous: ag diagnóisiú (diagnosing). The verbal adjective is diagnóisithe.

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

Past: Dhiagnóisigh mé; negative Níor dhiagnóisigh mé; question Ar dhiagnóisigh mé?. Future: Diagnóiseoidh mé; negative Ní dhiagnóiseoidh mé; question An ndiagnóiseoidh mé?.

What is the modh coinníollach of diagnóisigh?

The conditional (modh coinníollach) first person is Dhiagnóiseoinn (I would diagnose); negative Ní dhiagnóiseoinn; question An ndiagnóiseoinn?.

What is the noun for 'diagnosis' in Irish?

The noun is 'diagnóis', for example 'rinne an dochtúir diagnóis', and the verbal noun 'diagnóisiú' means the act of diagnosing.

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