Nominal Forms
Verb noun:
costio
Verbal adjectives:
costiedig; costiadwy
Indicative
Present / Future
| Sg.1 | costiaf |
| Sg.2 | costi |
| Sg.3 | costia |
| Pl.1 | costiwn |
| Pl.2 | costiwch |
| Pl.3 | costiant |
| Impersonal | costir |
Preterite
| Sg.1 | costiais |
| Sg.2 | costiaist |
| Sg.3 | costiodd |
| Pl.1 | costiasom |
| Pl.2 | costiasoch |
| Pl.3 | costiasant |
| Impersonal | costiwyd |
Pluperfect
| Sg.1 | costiaswn |
| Sg.2 | costiasit |
| Sg.3 | costiasai |
| Pl.1 | costiasem |
| Pl.2 | costiasech |
| Pl.3 | costiasent |
| Impersonal | costiasid; costiesid |
Imperfect (Indicative/Subjunctive)
Subjunctive
Present
| Sg.1 | costiwyf |
| Sg.2 | costiech |
| Sg.3 | costio |
| Pl.1 | costiom |
| Pl.2 | costioch |
| Pl.3 | costiont |
| Impersonal | costier |
Imperative
| Sg.2 | costia |
| Sg.3 | costied |
| Pl.1 | costiwn |
| Pl.2 | costiwch |
| Pl.3 | costient |
| Impersonal | costier |
Colloquial Forms
Future
| Sg.1 | costia i; costiaf i |
| Sg.2 | costi di |
| Sg.3 | costith o; costiff e |
| Pl.1 | costiwn ni |
| Pl.2 | costiwch chi |
| Pl.3 | costian nhw |
Preterite
| Sg.1 | costiais i; costies i |
| Sg.2 | costiaist ti; costiest ti |
| Sg.3 | costiodd o |
| Pl.1 | costion ni |
| Pl.2 | costioch chi |
| Pl.3 | costion nhw |
Conditional
| Sg.1 | costiwn i; costiswn i |
| Sg.2 | costiet ti; costiset ti |
| Sg.3 | costiai fo; costisai fo |
| Pl.1 | costien ni; costisen ni |
| Pl.2 | costiech chi; costisech chi |
| Pl.3 | costien nhw; costisen nhw |
Verbs conjugated like 'costio'
bonclustio,
rhybuddio,
adweithio,
cydgordio,
draenio,
goruchwylio,
disgrifio,
taflunio,
chwilio,
cyfeirio,
cydweithio,
ymgeisio,
damio,
delio,
ditio,
datguddio,
ymchwilio,
yswirio,
arestio,
astudio, etc. (List truncated at 20 verbs)
Verbs similar to 'costio'
postio,
tostio,
coelio,
cofio,
cosbi,
cosi,
rhostio,
tystio,
actio,
arestio,
Translations
Etymology
cost + -io
Additional Information