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cau

to close

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

Present

Presennol

PersonForm
I (fi)caeaf
You sg. (ti)caei
He/She (fe/hi)cae
We (ni)caewn
You pl. (chi)caewch
They (nhw)caeant
Impersonalcaeir

Imperfect

Amherffaith

PersonForm
I (fi)caewn
You sg. (ti)caeit
He/She (fe/hi)caeai
We (ni)caeem
You pl. (chi)caeech
They (nhw)caeent
Impersonalcaeid

Preterite

Gorffennol

PersonForm
I (fi)caeais
You sg. (ti)caeaist
He/She (fe/hi)caeodd
We (ni)caeasom
You pl. (chi)caeasoch
They (nhw)caeasant
Impersonalcaewyd

Pluperfect

Gorberffaith

PersonForm
I (fi)caeaswn
You sg. (ti)caeasit
He/She (fe/hi)caeasai
We (ni)caeasem
You pl. (chi)caeasech
They (nhw)caeasent
Impersonalcaeasid

Future

Dyfodol

PersonForm
I (fi)caeaf i
You sg. (ti)caei di
He/She (fe/hi)hi o
We (ni)caewn ni
You pl. (chi)caewch chi
They (nhw)caean nhw

Conditional

Amodol

PersonForm
I (fi)caewn
You sg. (ti)caeit
He/She (fe/hi)hi
We (ni)caeem
You pl. (chi)caeech
They (nhw)caeent
Impersonalcaeid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)cau
He/She (fe/hi)caeed
We (ni)caewn
You pl. (chi)caewch
They (nhw)caeent
Impersonalcaeer

Example sentences

Mae’r rhwystrau hyn yn cael eu cau dros nos.

These barriers are closed overnight.

B1

Rydym wedi gweld canolfannau hamdden yn cau, llyfrgelloedd yn cau, mwy o wythnosau rhwng casgliadau biniau, gwasanaethau pwysig yn cael eu torri.

We've seen leisure centres close, libraries close, more weeks between bin collections, important services cut.

C1

Mae yna angen dybryd am welyau hosbis arnom ni yn Nwyfor Meirionnydd, felly wrth fod hwn yn cau, mae'n mynd i roi pwysau ychwanegol ar Fangor a Llandudno, ac yn wir yn rhoi pwysau ar y bwrdd iechyd.

There is a grave need for hospital beds in Dwyfor Meirionnydd, and as this closes, it's going to add additional pressures on Bangor and Llandudno and places pressures on the health board.

B2

O ystyried y sefyllfa argyfyngus sy'n wynebu'r hosbis hon nawr, pam na allwch chi ddarparu rhywfaint o arian argyfwng nawr i atal yr hosbis rhag cau?

Why, given the emergency situation now facing this hospice, can you not provide some emergency funding now to prevent the closure of this hospice?

C1

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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