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tarthu

to evaporate

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

Present

Presennol

PersonForm
I (fi)tarthaf
You sg. (ti)sychderthi
He/She (fe/hi)tartha
We (ni)tarthwn
You pl. (chi)sychderthwch
They (nhw)tarthant
Impersonalsychderthir

Imperfect

Amherffaith

PersonForm
I (fi)tarthwn
You sg. (ti)tarthit
He/She (fe/hi)tarthai
We (ni)tarthem
You pl. (chi)tarthech
They (nhw)tarthent
Impersonalsychderthid

Preterite

Gorffennol

PersonForm
I (fi)sychderthais
You sg. (ti)sychderthaist
He/She (fe/hi)hi
We (ni)tarthasom
You pl. (chi)tarthasoch
They (nhw)tarthasant
Impersonaltarthwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)tarthaswn
You sg. (ti)tarthasit
He/She (fe/hi)tarthasai
We (ni)tarthasem
You pl. (chi)tarthasech
They (nhw)tarthasent
Impersonaltarthasid

Future

Dyfodol

PersonForm
I (fi)tartha i
You sg. (ti)tarthi di
He/She (fe/hi)hi o
We (ni)tarthwn ni
You pl. (chi)tarthwch chi
They (nhw)tarthan nhw

Conditional

Amodol

PersonForm
I (fi)tarthwn
You sg. (ti)tarthit
He/She (fe/hi)hi
We (ni)tarthem
You pl. (chi)tarthech
They (nhw)tarthent
Impersonalsychderthid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)tartha
He/She (fe/hi)tarthed
We (ni)tarthwn
You pl. (chi)sychderthwch
They (nhw)tarthent
Impersonaltarther

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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