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cynnwys

to contain

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

Present

Presennol

PersonForm
I (fi)cynhwysaf
You sg. (ti)cynhwysi
He/She (fe/hi)cynhwysa
We (ni)cynhwyswn
You pl. (chi)cynhwyswch
They (nhw)cynhwysant
Impersonalcynhwysir

Imperfect

Amherffaith

PersonForm
I (fi)cynhwyswn
You sg. (ti)cynhwysit
He/She (fe/hi)cynhwysai
We (ni)cynhwysem
You pl. (chi)cynhwysech
They (nhw)cynhwysent
Impersonalcynhwysid

Preterite

Gorffennol

PersonForm
I (fi)cynhwysais
You sg. (ti)cynhwysaist
He/She (fe/hi)cynhwysodd
We (ni)cynwysasom
You pl. (chi)cynwysasoch
They (nhw)cynwysasant
Impersonalcynhwyswyd

Pluperfect

Gorberffaith

PersonForm
I (fi)cynwysaswn
You sg. (ti)cynwysasit
He/She (fe/hi)cynwysasai
We (ni)cynwysasem
You pl. (chi)cynwysasech
They (nhw)cynwysasent
Impersonalcynwysasid

Future

Dyfodol

PersonForm
I (fi)cynhwysaf i
You sg. (ti)cynhwysi di
He/She (fe/hi)hi o
We (ni)cynhwyswn ni
You pl. (chi)cynhwyswch chi
They (nhw)cynhwysan nhw

Conditional

Amodol

PersonForm
I (fi)cynhwyswn
You sg. (ti)cynhwysit
He/She (fe/hi)cynhwysai
We (ni)cynhwysem
You pl. (chi)cynhwysech
They (nhw)cynhwysent
Impersonalcynhwysid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)cynhwysa
He/She (fe/hi)cynhwysed
We (ni)cynhwyswn
You pl. (chi)cynhwyswch
They (nhw)cynhwysent
Impersonalcynhwyser

Example sentences

Mae orgraff y Gymraeg fel bod llawer o eiriau Cymraeg (fel “ffwrdd” a “gyflwynwyd”) yn arddangos i siaradwyr ieithoedd eraill i beidio cynnwys unrhyw gytseiniaid.

Welsh orthography is such that many Welsh words (such as "ffwrdd" and "gyflwynwyd") appear to speakers of other languages to consist entirely of consonants.

B2

Mae argymhellion ar gyfer gwella perfformiad ynni’r adeilad wedi’u cynnwys yn yr Adroddiad Argymhellion perthynol.

Recommendations for improving the energy performance of the building are contained in the associated Recommendation Report.

B2

Rhybudd! Cynnwys Asbestos.

Warning! Contains Asbestos.

B1

Yn y fersiwn ddwyieithog, mae’r golofn chwith yn cynnwys yr iaith a lefarwyd yn y cyfarfod.

In the bilingual version, the left-hand column includes the language used during the meeting.

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

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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