tystio

Welsh

From tyst (“witness”) +‎ -io.

tystio (first-person singular present tystiaf)

Conjugation (literary)

	singular			plural			impersonal
	first	second	third	first	second	third	impersonal
present indicative/future	tystiaf	tysti	tystia	tystiwn	tystiwch	tystiant	tystir
imperfect (indicative/subjunctive)/conditional	tystiwn	tystit	tystiai	tystiem	tystiech	tystient	tystid
preterite	tystiais	tystiaist	tystiodd	tystiasom	tystiasoch	tystiasant	tystiwyd
pluperfect	tystiaswn	tystiasit	tystiasai	tystiasem	tystiasech	tystiasent	tystiasid, tystiesid
present subjunctive	tystiwyf	tystiech	tystio	tystiom	tystioch	tystiont	tystier
imperative	—	tystia	tystied	tystiwn	tystiwch	tystient	tystier
verbal noun
verbal adjectives	tystiedig tystiadwy

Conjugation (colloquial)
inflected colloquial forms	singular			plural
inflected colloquial forms	first	second	third	first	second	third
future	tystia i, tystiaf i	tysti di	tystith o/e/hi, tystiff e/hi	tystiwn ni	tystiwch chi	tystian nhw
conditional	tystiwn i, tystswn i	tystiet ti, tystset ti	tystiai fo/fe/hi, tystsai fo/fe/hi	tystien ni, tystsen ni	tystiech chi, tystsech chi	tystien nhw, tystsen nhw
preterite	tystiais i, tysties i	tystiaist ti, tystiest ti	tystiodd o/e/hi	tystion ni	tystioch chi	tystion nhw
imperative	—	tystia	—	—	tystiwch	—

Note: All other forms are periphrastic, as usual in colloquial Welsh.

Mutated forms of *tystio*
radical	soft	nasal	aspirate
tystio	dystio	nhystio	thystio

Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.