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gwybod

to know

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

Present

Presennol

PersonForm
I (fi)gwn
You sg. (ti)gwyddost
He/She (fe/hi)gŵyr
We (ni)gwyddom
You pl. (chi)gwyddoch
They (nhw)gwyddant
Impersonalgwyddys

Imperfect

Amherffaith

PersonForm
I (fi)gwyddwn
You sg. (ti)gwyddit
He/She (fe/hi)gwyddai
We (ni)gwyddem
You pl. (chi)gwyddech
They (nhw)gwyddent
Impersonalgwyddid

Preterite

Gorffennol

PersonForm
I (fi)gwybûm
You sg. (ti)gwybuost
He/She (fe/hi)gwybu
We (ni)gwybuom
You pl. (chi)gwybuoch
They (nhw)gwybuont
Impersonalgwybuwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)gwybuaswn
You sg. (ti)gwybuasit
He/She (fe/hi)gwybuasai
We (ni)gwybuasem
You pl. (chi)gwybuasech
They (nhw)gwybuasent
Impersonalgwybuasid

Future

Dyfodol

PersonForm
I (fi)gwybyddaf
You sg. (ti)gwybyddi
He/She (fe/hi)gwybydd
We (ni)gwybyddwn
You pl. (chi)gwybyddwch
They (nhw)gwybyddant
Impersonalgwyddir

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)gwybydd
He/She (fe/hi)gwyped
We (ni)gwybyddwn
You pl. (chi)gwybyddwch
They (nhw)gwypent
Impersonalgwyper

Example sentences

Dw i'n gwybod.

I know.

A1

Mae e'n gwybod ble dyn ni'n byw.

He knows where we live.

A1

Dydw i ddim yn gwybod ei rhif ffôn hi.

I don't know her telephone number.

A2

Doedd neb yn gwybod.

No one knew.

A2

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 →

Practise "gwybod" with spaced repetition

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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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