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trefnu

to arrange

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

Present

Presennol

PersonForm
I (fi)trefnaf
You sg. (ti)trefni
He/She (fe/hi)trefna
We (ni)trefnwn
You pl. (chi)trefnwch
They (nhw)trefnant
Impersonaltrefnir

Imperfect

Amherffaith

PersonForm
I (fi)trefnwn
You sg. (ti)trefnit
He/She (fe/hi)trefnai
We (ni)trefnem
You pl. (chi)trefnech
They (nhw)trefnent
Impersonaltrefnid

Preterite

Gorffennol

PersonForm
I (fi)trefnais
You sg. (ti)trefnaist
He/She (fe/hi)trefnodd
We (ni)trefnasom
You pl. (chi)trefnasoch
They (nhw)trefnasant
Impersonaltrefnwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)trefnaswn
You sg. (ti)trefnasit
He/She (fe/hi)trefnasai
We (ni)trefnasem
You pl. (chi)trefnasech
They (nhw)trefnasent
Impersonaltrefnasid

Future

Dyfodol

PersonForm
I (fi)trefna i
You sg. (ti)trefni di
He/She (fe/hi)hi o
We (ni)trefnwn ni
You pl. (chi)trefnwch chi
They (nhw)trefnan nhw

Conditional

Amodol

PersonForm
I (fi)trefnwn
You sg. (ti)trefnit
He/She (fe/hi)hi
We (ni)trefnem
You pl. (chi)trefnech
They (nhw)trefnent
Impersonaltrefnid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)trefna
He/She (fe/hi)trefned
We (ni)trefnwn
You pl. (chi)trefnwch
They (nhw)trefnent
Impersonaltrefner

Example sentences

Ond bydd y Bil hwn yn integreiddio'n well sut mae dysgwyr yn teithio gyda gwasanaethau teithwyr wedi'u trefnu.

But this Bill will better integrate learner travel with scheduled passenger services.

B2

Yn ail, fe fydd trefnu ras milgwn mewn unrhyw leoliad yng Nghymru yn drosedd.

Secondly, it will be an offence to organise a greyhound race anywhere in Wales.

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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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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