datgan

Welsh

dat- (“re-”) +‎ canu (“sing; say”)^[1]

datgan (first-person singular present datganaf)

Conjugation (literary)

	singular			plural			impersonal
	first	second	third	first	second	third	impersonal
present indicative/future	datganaf	datgeni	datgana	datganwn	datgenwch, datganwch	datganant	datgenir
imperfect (indicative/subjunctive)/ conditional	datganwn	datganit	datganai	datganem	datganech	datganent	datgenid
preterite	datgenais	datgenaist	datganodd	datganasom	datganasoch	datganasant	datganwyd
pluperfect	datganaswn	datganasit	datganasai	datganasem	datganasech	datganasent	datganasid, datganesid
present subjunctive	datganwyf	datgenych	datgano	datganom	datganoch	datganont	datganer
imperative	—	datgana	datganed	datganwn	datgenwch, datganwch	datganent	datganer
verbal noun	datgan
verbal adjectives	datganedig datganadwy

Conjugation (colloquial)

Inflected colloquial forms	singular			plural
Inflected colloquial forms	first	second	third	first	second	third
future	datgana i, datganaf i	datgani di	datganith o/e/hi, datganiff e/hi	datganwn ni	datganwch chi	datganan nhw
conditional	datganwn i, datganswn i	datganet ti, datganset ti	datganai fo/fe/hi, datgansai fo/fe/hi	datganen ni, datgansen ni	datganech chi, datgansech chi	datganen nhw, datgansen nhw
preterite	datganais i, datganes i	datganaist ti, datganest ti	datganodd o/e/hi	datganon ni	datganoch chi	datganon nhw
imperative	—	datgana	—	—	datganwch	—
Note: All other forms are periphrastic, as usual in colloquial Welsh.

Mutated forms of *datgan*
radical	soft	nasal	aspirate
datgan	ddatgan	natgan	unchanged

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

^ R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “datgan”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies