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rhybuddio

to warn

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

Present

Presennol

PersonForm
I (fi)rhybuddiaf
You sg. (ti)rhybuddi
He/She (fe/hi)rhybuddia
We (ni)rhybuddiwn
You pl. (chi)rhybuddiwch
They (nhw)rhybuddiant
Impersonalrhybuddir

Imperfect

Amherffaith

PersonForm
I (fi)rhybuddiwn
You sg. (ti)rhybuddit
He/She (fe/hi)rhybuddiai
We (ni)rhybuddiem
You pl. (chi)rhybuddiech
They (nhw)rhybuddient
Impersonalrhybuddid

Preterite

Gorffennol

PersonForm
I (fi)rhybuddiais
You sg. (ti)rhybuddiaist
He/She (fe/hi)rhybuddiodd
We (ni)rhybuddiasom
You pl. (chi)rhybuddiasoch
They (nhw)rhybuddiasant
Impersonalrhybuddiwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)rhybuddiaswn
You sg. (ti)rhybuddiasit
He/She (fe/hi)rhybuddiasai
We (ni)rhybuddiasem
You pl. (chi)rhybuddiasech
They (nhw)rhybuddiasent
Impersonalrhybuddiasid

Future

Dyfodol

PersonForm
I (fi)rhybuddia i
You sg. (ti)rhybuddi di
He/She (fe/hi)hi o
We (ni)rhybuddiwn ni
You pl. (chi)rhybuddiwch chi
They (nhw)rhybuddian nhw

Conditional

Amodol

PersonForm
I (fi)rhybuddiwn
You sg. (ti)rhybuddit
He/She (fe/hi)hi
We (ni)rhybuddiem
You pl. (chi)rhybuddiech
They (nhw)rhybuddient
Impersonalrhybuddid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)rhybuddia
He/She (fe/hi)rhybuddied
We (ni)rhybuddiwn
You pl. (chi)rhybuddiwch
They (nhw)rhybuddient
Impersonalrhybuddier

Example sentences

Mae'r Awdurdod Cystadleuaeth a Marchnadoedd wedi rhybuddio mewn adroddiad diweddar bod rhy ychydig o lawer o gartrefi, darpariaeth anodd ei rhagweld, a thargedau gwan, anghyson gan awdurdodau cynllunio lleol yng Nghymru.

The Competition and Markets Authority has warned in a recent report that in Wales there are far too few homes, unpredictable delivery, and weak, inconsistent targets from local planning authorities.

C1

Er bod ganddo rai manteision, rydym wedi clywed gan undebau sydd wedi rhybuddio y bydd yn effeithio ar ansawdd gwasanaeth a chynaliadwyedd gweithredwyr.

Whilst it has some advantages, we've heard from unions who have warned that it'll impact service quality and operator sustainability.

C1

Mae hynna wedi'ch rhybuddio chi nawr—rydych chi ar fin cael eich galw.

That's warned you now—you're about to be called.

B1

Ond os na wnewch chi hynny, mae'n rhybuddio, os collwch y cyfle, yna bydd rhaid ichi fewnforio model rhywun arall.

If you don't, however, she warns, if you miss the opportunity, then you end up importing somebody else's model.

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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