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goleuo

to illuminate

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

Present

Presennol

PersonForm
I (fi)goleuaf
You sg. (ti)goleui
He/She (fe/hi)goleuo
We (ni)goleuwn
You pl. (chi)goleuwch
They (nhw)goleuant
Impersonalgoleuir

Imperfect

Amherffaith

PersonForm
I (fi)goleuwn
You sg. (ti)goleuit
He/She (fe/hi)goleuai
We (ni)goleuem
You pl. (chi)goleuech
They (nhw)goleuent
Impersonalgoleuid

Preterite

Gorffennol

PersonForm
I (fi)goleuais
You sg. (ti)goleuaist
He/She (fe/hi)hi
We (ni)goleuasom
You pl. (chi)goleuasoch
They (nhw)goleuasant
Impersonalgoleuwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)goleuaswn
You sg. (ti)goleuasit
He/She (fe/hi)goleuasai
We (ni)goleuasem
You pl. (chi)goleuasech
They (nhw)goleuasent
Impersonalgoleuasid

Future

Dyfodol

PersonForm
I (fi)goleua i
You sg. (ti)goleui di
He/She (fe/hi)hi o
We (ni)goleuwn ni
You pl. (chi)goleuwch chi
They (nhw)goleuan nhw

Conditional

Amodol

PersonForm
I (fi)goleuwn
You sg. (ti)goleuit
He/She (fe/hi)hi
We (ni)goleuem
You pl. (chi)goleuech
They (nhw)goleuent
Impersonalgoleuid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)goleua
He/She (fe/hi)goleued
We (ni)goleuwn
You pl. (chi)goleuwch
They (nhw)goleuent
Impersonalgoleuer

Example sentences

Pan fydd y lamp yn goleuo, siaradwch efo’r staff.

When lamp lights, speak to staff.

B2

Roedd yn dad ffydlon, a byddai ei wyneb yn goleuo pryd bynnag y byddai'n sôn am Caitlin a Holly, ei falchder a'i lawenydd.

He was a devoted father, and his face would light up whenever he mentioned Caitlin and Holly, his pride and joy.

B2

Roedd y ffordd y byddai llygaid Hefin yn goleuo pryd bynnag y byddai'n siarad amdanoch chi, y balchder yr oedd yn ei deimlo yn y bywyd a'r bartneriaeth y gwnaethoch chi eu hadeiliadu gyda'ch gilydd yn ddigamsyniol.

The way Hefin's eyes would light up whenever he spoke about you, the pride he felt in the life and partnership you built together was unmistakable.

C1

Felly, fyddai modd ichi ein goleuo ni o ran y dyfodol ac a allwn ni ystyried Deddf, os gallwn ni, yn y dyfodol?

So, would you just give us your pearls of wisdom in terms of the future and whether we can look at an Act, if we can, going forward?

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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