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cyfnewid

to change

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

Present

Presennol

PersonForm
I (fi)cyfnewidiaf
You sg. (ti)cyfnewidi
He/She (fe/hi)cyfnewidi
We (ni)cyfnewidiwn
You pl. (chi)cyfnewidiwch
They (nhw)cyfnewidiant
Impersonalcyfnewidir

Imperfect

Amherffaith

PersonForm
I (fi)cyfnewidiwn
You sg. (ti)cyfnewidit
He/She (fe/hi)cyfnewidiai
We (ni)cyfnewidiem
You pl. (chi)cyfnewidiech
They (nhw)cyfnewidient
Impersonalcyfnewidid

Preterite

Gorffennol

PersonForm
I (fi)cyfnewidiais
You sg. (ti)cyfnewidiaist
He/She (fe/hi)cyfnewidiodd
We (ni)cyfnewidiasom
You pl. (chi)cyfnewidiasoch
They (nhw)cyfnewidiasant
Impersonalcyfnewidiwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)cyfnewidiaswn
You sg. (ti)cyfnewidiasit
He/She (fe/hi)cyfnewidiasai
We (ni)cyfnewidiasem
You pl. (chi)cyfnewidiasech
They (nhw)cyfnewidiasent
Impersonalcyfnewidiasid

Future

Dyfodol

PersonForm
I (fi)cyfnewidia i
You sg. (ti)cyfnewidi di
He/She (fe/hi)hi o
We (ni)cyfnewidiwn ni
You pl. (chi)cyfnewidiwch chi
They (nhw)cyfnewidian nhw

Conditional

Amodol

PersonForm
I (fi)cyfnewidiwn
You sg. (ti)cyfnewidit
He/She (fe/hi)hi
We (ni)cyfnewidiem
You pl. (chi)cyfnewidiech
They (nhw)cyfnewidient
Impersonalcyfnewidid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)cyfnewidi
He/She (fe/hi)cyfnewidied
We (ni)cyfnewidiwn
You pl. (chi)cyfnewidiwch
They (nhw)cyfnewidient
Impersonalcyfnewidier

Example sentences

Gall berson dwyieithog newid o un iaith i iaith arall yng nghanol frawddeg, ac mae'r cyfnewid-cod hwn yn bwnc astudio i ieithyddion.

A bilingual person can change from one language to another in the middle of a sentence, and this code-switching is a topic of study for linguists.

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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dal

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trio

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