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diwygio

to amend

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

Present

Presennol

PersonForm
I (fi)diwygiaf
You sg. (ti)diwygi
He/She (fe/hi)diwygio
We (ni)diwygiwn
You pl. (chi)diwygiwch
They (nhw)diwygiant
Impersonaldiwygir

Imperfect

Amherffaith

PersonForm
I (fi)diwygiwn
You sg. (ti)diwygit
He/She (fe/hi)diwygiai
We (ni)diwygiem
You pl. (chi)diwygiech
They (nhw)diwygient
Impersonaldiwygid

Preterite

Gorffennol

PersonForm
I (fi)diwygiais
You sg. (ti)diwygiaist
He/She (fe/hi)diwygiodd
We (ni)diwygiasom
You pl. (chi)diwygiasoch
They (nhw)diwygiasant
Impersonaldiwygiwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)diwygiaswn
You sg. (ti)diwygiasit
He/She (fe/hi)diwygiasai
We (ni)diwygiasem
You pl. (chi)diwygiasech
They (nhw)diwygiasent
Impersonaldiwygiasid

Conditional

Amodol

PersonForm
I (fi)diwygiwn
You sg. (ti)diwygit
He/She (fe/hi)diwygiai
We (ni)diwygiem
You pl. (chi)diwygiech
They (nhw)diwygient
Impersonaldiwygid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)diwygi
He/She (fe/hi)diwygied
We (ni)diwygiwn
You pl. (chi)diwygiwch
They (nhw)diwygient
Impersonaldiwygier

Example sentences

Roedd rhanddeiliaid hefyd yn rhannu safbwyntiau sy'n gyfarwydd i bob un ohonom, fod angen diwygio fformiwla Barnett i sicrhau bod Llywodraeth Cymru yn cael ei chyfran deg o gyllid gan Lywodraeth y DU.

Stakeholders also shared views that are familiar to all of us, that a reform of the Barnett formula is required to ensure that the Welsh Government receives its fair share of funding from the UK Government.

C1

Pan fydd gennym y Ddeddf, gallwn ychwanegu ati a'i diwygio yn y dyfodol.

Once we have the Act, we can add to it and amend it in the future.

B2

Fel rydym ni wedi clywed, un o'r rhai a oedd yn wirioneddol effeithiol oedd diwygio llwybr bws Rhif 50, fel y gallai pobl yng Nghaerffili fynd i Ysbyty Brenhinol Gwent.

As we've heard, one of those that was really impactful was amending the No. 50 bus route, so that people in Caerphilly could go to the Royal Gwent Hospital.

C1

Mae hi'n amlwg iawn fod angen archwiliad sgiliau a bod angen diwygio'r dirwedd sgiliau a chymorth i fusnesau.

It’s very clear that a skills audit is desperately needed and that the skills and business support landscape needs reforming.

B1

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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uno

to join

duo

to become black

mela

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dal

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trio

to try

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