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ynysu

to insulate

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

Present

Presennol

PersonForm
I (fi)ynysaf
You sg. (ti)ynysi
He/She (fe/hi)ynysa
We (ni)ynyswn
You pl. (chi)ynyswch
They (nhw)ynysant
Impersonalynysir

Imperfect

Amherffaith

PersonForm
I (fi)ynyswn
You sg. (ti)ynysit
He/She (fe/hi)ynysai
We (ni)ynysem
You pl. (chi)ynysech
They (nhw)ynysent
Impersonalynysid

Preterite

Gorffennol

PersonForm
I (fi)ynysais
You sg. (ti)ynysaist
He/She (fe/hi)ynysodd
We (ni)ynysasom
You pl. (chi)ynysasoch
They (nhw)ynysasant
Impersonalynyswyd

Pluperfect

Gorberffaith

PersonForm
I (fi)ynysaswn
You sg. (ti)ynysasit
He/She (fe/hi)ynysasai
We (ni)ynysasem
You pl. (chi)ynysasech
They (nhw)ynysasent
Impersonalynysasid

Future

Dyfodol

PersonForm
I (fi)ynysa i
You sg. (ti)ynysi di
He/She (fe/hi)hi o
We (ni)ynyswn ni
You pl. (chi)ynyswch chi
They (nhw)ynysan nhw

Conditional

Amodol

PersonForm
I (fi)ynyswn
You sg. (ti)ynysit
He/She (fe/hi)hi
We (ni)ynysem
You pl. (chi)ynysech
They (nhw)ynysent
Impersonalynysid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)ynysa
He/She (fe/hi)ynysed
We (ni)ynyswn
You pl. (chi)ynyswch
They (nhw)ynysent
Impersonalynyser

Example sentences

Rydym ni wedi siarad mor aml dros y blynyddoedd yma am ynysu cymdeithasol, ac ofn pobl o fynd allan.

We've talked so often over the years here about social isolation, and people's fear of going out.

C1

Fel arall, mae'n cyfrannu at ynysu cymdeithasol.

Otherwise, it just contributes to social isolation.

B1

Trwy roi pobl yn gyntaf y byddwn yn mynd i'r afael ag ynysu cymdeithasol.

It's by putting people first that we'll address social isolation.

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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