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cadarnhau

to strengthen

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

Present

Presennol

PersonForm
I (fi)cadarnhâf
You sg. (ti)cadarnhei
He/She (fe/hi)cadarnhâ
We (ni)cadarnhawn
You pl. (chi)cadarnhewch
They (nhw)cadarnhânt
Impersonalcadarnheir

Imperfect

Amherffaith

PersonForm
I (fi)cadarnhawn
You sg. (ti)cadarnhait
He/She (fe/hi)cadarnhâi
We (ni)cadarnhaem
You pl. (chi)cadarnhaech
They (nhw)cadarnhaent
Impersonalcadarnheid

Preterite

Gorffennol

PersonForm
I (fi)cadarnheais
You sg. (ti)cadarnheaist
He/She (fe/hi)cadarnhaodd
We (ni)cadarnhasom
You pl. (chi)cadarnhasoch
They (nhw)cadarnhasant
Impersonalcadarnhawyd

Pluperfect

Gorberffaith

PersonForm
I (fi)cadarnhaswn
You sg. (ti)cadarnhasit
He/She (fe/hi)cadarnhasai
We (ni)cadarnhasem
You pl. (chi)cadarnhasech
They (nhw)cadarnhasent
Impersonalcadarnhasid

Conditional

Amodol

PersonForm
I (fi)cadarnhawn
You sg. (ti)cadarnhait
He/She (fe/hi)cadarnhâi
We (ni)cadarnhaem
You pl. (chi)cadarnhaech
They (nhw)cadarnhaent
Impersonalcadarnheid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)cadarnhâ
He/She (fe/hi)cadarnhaed
We (ni)cadarnhawn
You pl. (chi)cadarnhewch
They (nhw)cadarnhaent
Impersonalcadarnhaer

Example sentences

Mae'r hosbis wedi cadarnhau bod pob un claf yn cael asesiad unigol gan y tîm clinigol, yn cydweithio gyda'r meddygon teulu a'r bwrdd iechyd, gyda chefnogaeth ychwanegol oddi wrth staff yr hosbis wrth fynd trwy'r cyfnod sydd o'u blaenau nhw.

The hospice has confirmed that all patients will have an individual assessment from the clinical team, in collaboration with GPs and the health board, with additional support from hospice staff while going through this period ahead of them.

C1

Mae adroddiadau'r pwyllgor yn cadarnhau ein bod yn cytuno ag asesiad Llywodraeth Cymru o'r cymalau sy'n gofyn am gydsyniad.

The committee’s reports confirm that we agree with the Welsh Government’s assessment of the clauses requiring consent.

B2

Mae'r asesiad effaith rheoleiddiol yn cadarnhau y bydd cyfanswm cost y Bil yn £623.5 miliwn dros y cyfnod arfarnu 30 mlynedd.

The regulatory impact assessment confirms that the total cost of the Bill will be £623.5 million over the 30-year appraisal period.

C1

Mae'r canfyddiadau hyn yn cadarnhau ein bod ni'n cymryd y camau cywir i gefnogi'r ysgolion.

These findings confirm we are taking the right steps to support schools.

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

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uno

to join

duo

to become black

mela

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dal

to catch

trio

to try

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