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perffeithio

to perfect

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

Present

Presennol

PersonForm
I (fi)perffeithiaf
You sg. (ti)perffeithi
He/She (fe/hi)perffeithio
We (ni)perffeithiwn
You pl. (chi)perffeithiwch
They (nhw)perffeithiant
Impersonalperffeithir

Imperfect

Amherffaith

PersonForm
I (fi)perffeithiwn
You sg. (ti)perffeithit
He/She (fe/hi)perffeithiai
We (ni)perffeithiem
You pl. (chi)perffeithiech
They (nhw)perffeithient
Impersonalperffeithid

Preterite

Gorffennol

PersonForm
I (fi)perffeithiais
You sg. (ti)perffeithiaist
He/She (fe/hi)perffeithiodd
We (ni)perffeithiasom
You pl. (chi)perffeithiasoch
They (nhw)perffeithiasant
Impersonalperffeithiwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)perffeithiaswn
You sg. (ti)perffeithiasit
He/She (fe/hi)perffeithiasai
We (ni)perffeithiasem
You pl. (chi)perffeithiasech
They (nhw)perffeithiasent
Impersonalperffeithiasid

Future

Dyfodol

PersonForm
I (fi)perffeithia i
You sg. (ti)perffeithi di
He/She (fe/hi)hi o
We (ni)perffeithiwn ni
You pl. (chi)perffeithiwch chi
They (nhw)perffeithian nhw

Conditional

Amodol

PersonForm
I (fi)perffeithiwn
You sg. (ti)perffeithit
He/She (fe/hi)hi
We (ni)perffeithiem
You pl. (chi)perffeithiech
They (nhw)perffeithient
Impersonalperffeithid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)perffeithi
He/She (fe/hi)perffeithied
We (ni)perffeithiwn
You pl. (chi)perffeithiwch
They (nhw)perffeithient
Impersonalperffeithier

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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