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duo

to become black

"duo" means "to become black" in Welsh. Full conjugation table with present, imperfect, preterite, future, conditional, and imperative tenses.

Present

Presennol

PersonForm
I (fi)duaf
You sg. (ti)dui
He/She (fe/hi)du
We (ni)düwn
You pl. (chi)düwch
They (nhw)duant
Impersonalduer

Imperfect

Amherffaith

PersonForm
I (fi)düwn
You sg. (ti)duit
He/She (fe/hi)duai
We (ni)duem
You pl. (chi)duech
They (nhw)duent
Impersonalduid

Preterite

Gorffennol

PersonForm
I (fi)duais
You sg. (ti)duaist
He/She (fe/hi)duodd
We (ni)duasom
You pl. (chi)duasoch
They (nhw)duasant
Impersonalduwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)duaswn
You sg. (ti)duasit
He/She (fe/hi)duasai
We (ni)duasem
You pl. (chi)duasech
They (nhw)duasent
Impersonalduasid

Future

Dyfodol

PersonForm
I (fi)dua i
You sg. (ti)dui di
He/She (fe/hi)hi o
We (ni)düwn ni
You pl. (chi)düwch chi
They (nhw)duan nhw

Conditional

Amodol

PersonForm
I (fi)düwn
You sg. (ti)duit
He/She (fe/hi)hi
We (ni)duem
You pl. (chi)duech
They (nhw)duent
Impersonalduid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)du
He/She (fe/hi)dued
We (ni)düwn
You pl. (chi)düwch
They (nhw)duent
Impersonalduer

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

mela

to gather nectar to make honey

dal

to catch

trio

to try

odi

to snow

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