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To congratulate in Irish (tréaslaigh): Meaning, Conjugation, Examples

The Irish for to congratulate is tréaslaigh; ag tréaslú is congratulating.
Updated October 2026Report a mistake

How to say “to congratulate” in Irish

Irish:
tréaslaigh
English:
to congratulate
Word type:
verb, second-conjugation
Verbal noun:
tréaslú (ag tréaslú, congratulating)
Verbal adjective:
tréaslaithe
Pronunciation:
“TRAYSS-lee”  /tʲɾʲeːsˠlˠə/

What does “tréaslaigh” mean?

to congratulate
To tell someone you are pleased about their success or good news; used with 'le' for the person: 'tréaslaigh rud le duine'.Also: felicitate, wish well.

“Tréaslaigh” in the different tenses

Every form follows An Caighdeán Oifigiúil.

Aimsir Chaite (Past)

PersonPositiveNegativeQuestion
mé (I)Thréaslaigh méI congratulatedNíor thréaslaigh méI did not congratulateAr thréaslaigh mé?Did I congratulate?
tú (you)Thréaslaigh túYou congratulatedNíor thréaslaigh túYou did not congratulateAr thréaslaigh tú?Did you congratulate?
sé / sí (he / she)Thréaslaigh sé / síHe congratulatedNíor thréaslaigh sé / síHe did not congratulateAr thréaslaigh sé / sí?Did he congratulate?
sinn (we)ThréaslaíomarWe congratulatedNíor thréaslaíomarWe did not congratulateAr thréaslaíomar?Did we congratulate?
sibh (you, plural)Thréaslaigh sibhYou congratulatedNíor thréaslaigh sibhYou did not congratulateAr thréaslaigh sibh?Did you congratulate?
siad (they)Thréaslaigh siadThey congratulatedNíor thréaslaigh siadThey did not congratulateAr thréaslaigh siad?Did they congratulate?
saorbhriathar (autonomous)TréaslaíodhNíor tréaslaíodhAr tréaslaíodh?

Aimsir Láithreach (Present)

PersonPositiveNegativeQuestion
mé (I)TréaslaímI congratulateNí thréaslaímI do not congratulateAn dtréaslaím?Do I congratulate?
tú (you)Tréaslaíonn túYou congratulateNí thréaslaíonn túYou do not congratulateAn dtréaslaíonn tú?Do you congratulate?
sé / sí (he / she)Tréaslaíonn sé / síHe congratulatesNí thréaslaíonn sé / síHe does not congratulateAn dtréaslaíonn sé / sí?Does he congratulate?
sinn (we)TréaslaímidWe congratulateNí thréaslaímidWe do not congratulateAn dtréaslaímid?Do we congratulate?
sibh (you, plural)Tréaslaíonn sibhYou congratulateNí thréaslaíonn sibhYou do not congratulateAn dtréaslaíonn sibh?Do you congratulate?
siad (they)Tréaslaíonn siadThey congratulateNí thréaslaíonn siadThey do not congratulateAn dtréaslaíonn siad?Do they congratulate?
saorbhriathar (autonomous)TréaslaítearNí thréaslaítearAn dtréaslaítear?

Aimsir Fháistineach (Future)

PersonPositiveNegativeQuestion
mé (I)Tréaslóidh méI will congratulateNí thréaslóidh méI will not congratulateAn dtréaslóidh mé?Will I congratulate?
tú (you)Tréaslóidh túYou will congratulateNí thréaslóidh túYou will not congratulateAn dtréaslóidh tú?Will you congratulate?
sé / sí (he / she)Tréaslóidh sé / síHe will congratulateNí thréaslóidh sé / síHe will not congratulateAn dtréaslóidh sé / sí?Will he congratulate?
sinn (we)TréaslóimidWe will congratulateNí thréaslóimidWe will not congratulateAn dtréaslóimid?Will we congratulate?
sibh (you, plural)Tréaslóidh sibhYou will congratulateNí thréaslóidh sibhYou will not congratulateAn dtréaslóidh sibh?Will you congratulate?
siad (they)Tréaslóidh siadThey will congratulateNí thréaslóidh siadThey will not congratulateAn dtréaslóidh siad?Will they congratulate?
saorbhriathar (autonomous)TréaslófarNí thréaslófarAn dtréaslófar?

Modh Coinníollach (Conditional)

PersonPositiveNegativeQuestion
mé (I)ThréaslóinnI would congratulateNí thréaslóinnI would not congratulateAn dtréaslóinn?Would I congratulate?
tú (you)ThréaslófáYou would congratulateNí thréaslófáYou would not congratulateAn dtréaslófá?Would you congratulate?
sé / sí (he / she)Thréaslódh sé / síHe would congratulateNí thréaslódh sé / síHe would not congratulateAn dtréaslódh sé / sí?Would he congratulate?
sinn (we)ThréaslóimisWe would congratulateNí thréaslóimisWe would not congratulateAn dtréaslóimis?Would we congratulate?
sibh (you, plural)Thréaslódh sibhYou would congratulateNí thréaslódh sibhYou would not congratulateAn dtréaslódh sibh?Would you congratulate?
siad (they)ThréaslóidísThey would congratulateNí thréaslóidísThey would not congratulateAn dtréaslóidís?Would they congratulate?
saorbhriathar (autonomous)ThréaslófaíNí thréaslófaíAn dtréaslófaí?

“Tréaslaigh” in a sentence: Irish examples

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

Thréaslaigh mé a bpósadh leo inné.
I congratulated them on their wedding yesterday.
Tréaslaíonn an múinteoir a dtorthaí leis na daltaí.
The teacher congratulates the pupils on their results.
Tréaslóidh an tUachtarán an bua leis an bhfoireann.
The President will congratulate the team on the win.
Thréaslóinn leat é dá n-éireodh leat sa scrúdú.
I'd congratulate you if you passed the exam.
Níor thréaslaigh sé an post nua liom.
He didn't congratulate me on the new job.
Ar thréaslaigh tú an leanbh nua le Máire?
Did you congratulate Máire on the new baby?

Other verbs in Irish

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To congratulate in Irish: frequently asked questions

What is the Irish for to congratulate?

The Irish for to congratulate is tréaslaigh (pronounced “TRAYSS-lee”). It is a second-conjugation verb; the verbal noun is tréaslú.

What is the verbal noun of tréaslaigh?

The verbal noun of tréaslaigh is tréaslú, used after ag for the continuous: ag tréaslú (congratulating). The verbal adjective is tréaslaithe.

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

Past: Thréaslaigh mé; negative Níor thréaslaigh mé; question Ar thréaslaigh mé?. Future: Tréaslóidh mé; negative Ní thréaslóidh mé; question An dtréaslóidh mé?.

What is the modh coinníollach of tréaslaigh?

The conditional (modh coinníollach) first person is Thréaslóinn (I would congratulate); negative Ní thréaslóinn; question An dtréaslóinn?.

Which preposition does 'tréaslaigh' take?

The thing goes as the object and the person follows 'le': 'Thréaslaigh mé an bua léi', I congratulated her on the win. The common noun phrase is 'Comhghairdeas!' for 'Congratulations!'

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