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diddymu

to abolish

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

Present

Presennol

PersonForm
I (fi)diddymaf
You sg. (ti)diddymi
He/She (fe/hi)diddyma
We (ni)diddymwn
You pl. (chi)diddymwch
They (nhw)diddymant
Impersonaldiddymir

Imperfect

Amherffaith

PersonForm
I (fi)diddymwn
You sg. (ti)diddymit
He/She (fe/hi)diddymai
We (ni)diddymem
You pl. (chi)diddymech
They (nhw)diddyment
Impersonaldiddymid

Preterite

Gorffennol

PersonForm
I (fi)diddymais
You sg. (ti)diddymaist
He/She (fe/hi)diddymodd
We (ni)diddymasom
You pl. (chi)diddymasoch
They (nhw)diddymasant
Impersonaldiddymwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)diddymaswn
You sg. (ti)diddymasit
He/She (fe/hi)diddymasai
We (ni)diddymasem
You pl. (chi)diddymasech
They (nhw)diddymasent
Impersonaldiddymasid

Future

Dyfodol

PersonForm
I (fi)diddyma i
You sg. (ti)diddymi di
He/She (fe/hi)hi o
We (ni)diddymwn ni
You pl. (chi)diddymwch chi
They (nhw)diddyman nhw

Conditional

Amodol

PersonForm
I (fi)diddymwn
You sg. (ti)diddymit
He/She (fe/hi)hi
We (ni)diddymem
You pl. (chi)diddymech
They (nhw)diddyment
Impersonaldiddymid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)diddyma
He/She (fe/hi)diddymed
We (ni)diddymwn
You pl. (chi)diddymwch
They (nhw)diddyment
Impersonaldiddymer

Example sentences

Fodd bynnag, pe bai adroddiad modiwl 2 yn cael ei gyhoeddi mewn pryd, rydym yn rhagweld mai nifer cyfyngedig iawn o sesiynau y gallem eu cael ar hyn yn 2026, cyn diddymu'r Senedd, i gyfeirio atynt yn ein hadroddiad etifeddiaeth.

However, if the module 2 report is published in time, we would envisage having a very limited number of sessions on this in 2026, before Senedd dissolution, for reference in our legacy report.

C1

Bydd yr Aelodau yn gwybod nad yw'r Bil ar hyn o bryd yn rhoi amser i apêl Aelod gael ei chlywed er mwyn diddymu euogfarn cyn i bôl adalw gael ei sbarduno.

Members will know that the Bill does not currently provide a Member with time to have an appeal heard in order to overturn a conviction prior to a recall poll being triggered.

C2

Fel y nododd Gareth Davies, bydd diddymu'r dreth trafodiadau tir yn rhyddhau degau o filoedd o gartrefi ar y farchnad, gan greu gweithgarwch economaidd, a chefnogi busnesau lleol.

As Gareth Davies pointed out, scrapping land transaction tax will release tens of thousands of homes onto the market, creating economic activity, supporting local businesses.

C2

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

duo

to become black

mela

to gather nectar to make honey

dal

to catch

trio

to try

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