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gostwng

to lessen

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

Present

Presennol

PersonForm
I (fi)gostyngaf
You sg. (ti)gostyngi
He/She (fe/hi)gostwng
We (ni)gostyngwn
You pl. (chi)gostyngwch
They (nhw)gostyngant
Impersonalgostyngir

Imperfect

Amherffaith

PersonForm
I (fi)gostyngwn
You sg. (ti)gostyngit
He/She (fe/hi)gostyngai
We (ni)gostyngem
You pl. (chi)gostyngech
They (nhw)gostyngent
Impersonalgostyngid

Preterite

Gorffennol

PersonForm
I (fi)gostyngais
You sg. (ti)gostyngaist
He/She (fe/hi)gostyngodd
We (ni)gostyngasom
You pl. (chi)gostyngasoch
They (nhw)gostyngasant
Impersonalgostyngwyd

Pluperfect

Gorberffaith

PersonForm
I (fi)gostyngaswn
You sg. (ti)gostyngasit
He/She (fe/hi)gostyngasai
We (ni)gostyngasem
You pl. (chi)gostyngasech
They (nhw)gostyngasent
Impersonalgostyngasid

Future

Dyfodol

PersonForm
I (fi)gostynga i
You sg. (ti)gostyngi di
He/She (fe/hi)hi o
We (ni)gostyngwn ni
You pl. (chi)gostyngwch chi
They (nhw)gostyngan nhw

Conditional

Amodol

PersonForm
I (fi)gostyngwn
You sg. (ti)gostyngit
He/She (fe/hi)hi
We (ni)gostyngem
You pl. (chi)gostyngech
They (nhw)gostyngent
Impersonalgostyngid

Imperative

Gorchmynnol

PersonForm
I (fi)-
You sg. (ti)gostwng
He/She (fe/hi)gostynged
We (ni)gostyngwn
You pl. (chi)gostyngwch
They (nhw)gostyngent
Impersonalgostynger

Example sentences

Mae nifer yr athrawon plant byddar yng Nghymru yn gostwng, ac nid oes unman yng Nghymru lle gallwch hyfforddi i fod yn athro plant byddar.

The number of teachers of the deaf in Wales is falling, and there is nowhere in Wales where you can train to be a teacher of deaf children.

B2

Oherwydd pan fydd incwm ffermydd yn gostwng, mae'r effeithiau'n eang.

Because, when farm income falls, the impacts are widespread.

C1

Mae poblogaeth y DU o bryfed hedfan wedi gostwng 60 y cant mewn 20 mlynedd.

The UK's flying insects have declined by 60 per cent in 20 years.

C1

Ydy, mae nifer y gweithredoedd wedi gostwng, ond nid yw'r hyn sydd yno'n hawdd.

Yes, there is a reduction in actions, but what is there isn't a walk in the park.

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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