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carthu

to cleanse

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

Present

Presennol

PersonForm
I (fi)carthaf
You sg. (ti)carthi
He/She (fe/hi)carth
We (ni)carthwn
You pl. (chi)carthwch
They (nhw)carthant
Impersonalcarthir

Imperfect

Amherffaith

PersonForm
I (fi)carthwn
You sg. (ti)carthit
He/She (fe/hi)carthai
We (ni)carthem
You pl. (chi)carthech
They (nhw)carthent
Impersonalcarthid

Preterite

Gorffennol

PersonForm
I (fi)carthais
You sg. (ti)carthaist
He/She (fe/hi)hi
We (ni)carthasom
You pl. (chi)carthasoch
They (nhw)carthasant
Impersonalcarthwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)carthaswn
You sg. (ti)carthasit
He/She (fe/hi)carthasai
We (ni)carthasem
You pl. (chi)carthasech
They (nhw)carthasent
Impersonalcarthasid

Future

Dyfodol

PersonForm
I (fi)cartha i
You sg. (ti)carthi di
He/She (fe/hi)hi o
We (ni)carthwn ni
You pl. (chi)carthwch chi
They (nhw)carthan nhw

Conditional

Amodol

PersonForm
I (fi)carthwn
You sg. (ti)carthit
He/She (fe/hi)hi
We (ni)carthem
You pl. (chi)carthech
They (nhw)carthent
Impersonalcarthid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)carth
He/She (fe/hi)carthed
We (ni)carthwn
You pl. (chi)carthwch
They (nhw)carthent
Impersonalcarther

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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