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ymddiheuro

to apologize

"ymddiheuro" means "to apologize" in Welsh. Full conjugation table with present, imperfect, preterite, future, conditional, and imperative tenses.

Present

Presennol

PersonForm
I (fi)ymddiheuraf
You sg. (ti)ymddiheuri
He/She (fe/hi)ymddiheuro
We (ni)ymddiheurwn
You pl. (chi)ymddiheurwch
They (nhw)ymddiheurant
Impersonalymddiheurir

Imperfect

Amherffaith

PersonForm
I (fi)ymddiheurwn
You sg. (ti)ymddiheurit
He/She (fe/hi)ymddiheurai
We (ni)ymddiheurem
You pl. (chi)ymddiheurech
They (nhw)ymddiheurent
Impersonalymddiheurid

Preterite

Gorffennol

PersonForm
I (fi)ymddiheurais
You sg. (ti)ymddiheuraist
He/She (fe/hi)ymddiheurodd
We (ni)ymddiheurasom
You pl. (chi)ymddiheurasoch
They (nhw)ymddiheurasant
Impersonalymddiheurwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)ymddiheuraswn
You sg. (ti)ymddiheurasit
He/She (fe/hi)ymddiheurasai
We (ni)ymddiheurasem
You pl. (chi)ymddiheurasech
They (nhw)ymddiheurasent
Impersonalymddiheurasid

Future

Dyfodol

PersonForm
I (fi)ymddiheuraf i
You sg. (ti)ymddiheuri di
He/She (fe/hi)hi o
We (ni)ymddiheurwn ni
You pl. (chi)ymddiheurwch chi
They (nhw)ymddiheuran nhw

Conditional

Amodol

PersonForm
I (fi)ymddiheurwn
You sg. (ti)ymddiheurit
He/She (fe/hi)hi
We (ni)ymddiheurem
You pl. (chi)ymddiheurech
They (nhw)ymddiheurent
Impersonalymddiheurid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)ymddiheura
He/She (fe/hi)ymddiheured
We (ni)ymddiheurwn
You pl. (chi)ymddiheurwch
They (nhw)ymddiheurent
Impersonalymddiheurer

Example sentences

Does dim rhaid i Tom ymddiheuro i Mary.

Tom doesn't have to apologise to Mary.

B1

Mae Trafnidiaeth Cymru yn ymddiheuro am y tarfu a achoswyd i deithwyr oherwydd y diffygion ar y trac dros y penwythnos.

Transport for Wales are sorry and apologise for the disruption caused to passengers due to the track defects last weekend.

C1

Gwn y bu'n gyfnod prysur iawn i deithwyr dros y penwythnos, ac mae Trafnidiaeth Cymru wedi ymddiheuro am y tarfu, ond roedd hwn yn ddigwyddiad tywydd eithafol.

I know it was an extremely busy time for the travelling public at the weekend, and Transport for Wales has apologised for the disruption, but this was an extreme weather event.

C1

Rwy'n ymddiheuro; fe fyddaf yn gyflym.

I do apologise; I'll be one moment.

B2

Further reading

Welsh Verb Conjugation — All Tenses, Full Tables, Clear Patterns →The Welsh Verb Bod (To Be) — Every Form, Every Tense →Welsh Pronunciation — It's Actually Easier Than English →Best Apps to Learn Welsh (2026) →Browse all Welsh verb conjugations →

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Other Welsh verbs

euro

to gild

uno

to join

duo

to become black

mela

to gather nectar to make honey

dal

to catch

trio

to try

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