From Proto-Brythonic *tüβ̃id, from Proto-Celtic *tumīti, ultimately from Proto-Indo-European *tum-.
tyfu (first-person singular present tyfaf)
singular | plural | impersonal | ||||||
---|---|---|---|---|---|---|---|---|
first | second | third | first | second | third | |||
present indicative/future | tyfaf | tyfi | tyf, tyfa | tyfwn | tyfwch | tyfant | tyfir | |
imperfect (indicative/subjunctive)/ conditional |
tyfwn | tyfit | tyfai | tyfem | tyfech | tyfent | tyfid | |
preterite | tyfais | tyfaist | tyfodd | tyfasom | tyfasoch | tyfasant | tyfwyd | |
pluperfect | tyfaswn | tyfasit | tyfasai | tyfasem | tyfasech | tyfasent | tyfasid, tyfesid | |
present subjunctive | tyfwyf | tyfych | tyfo | tyfom | tyfoch | tyfont | tyfer | |
imperative | — | tyf, tyfa | tyfed | tyfwn | tyfwch | tyfent | tyfer | |
verbal noun | tyfu | |||||||
verbal adjectives | tyfadwy |
Inflected colloquial forms | singular | plural | ||||
---|---|---|---|---|---|---|
first | second | third | first | second | third | |
future | tyfa i, tyfaf i | tyfi di | tyfith o/e/hi, tyfiff e/hi | tyfwn ni | tyfwch chi | tyfan nhw |
conditional | tyfwn i, tyfswn i | tyfet ti, tyfset ti | tyfai fo/fe/hi, tyfsai fo/fe/hi | tyfen ni, tyfsen ni | tyfech chi, tyfsech chi | tyfen nhw, tyfsen nhw |
preterite | tyfais i, tyfes i | tyfaist ti, tyfest ti | tyfodd o/e/hi | tyfon ni | tyfoch chi | tyfon nhw |
imperative | — | tyfa | — | — | tyfwch | — |
Note: All other forms are periphrastic, as usual in colloquial Welsh. |
Welsh mutation | |||
---|---|---|---|
radical | soft | nasal | aspirate |
tyfu | dyfu | nhyfu | thyfu |
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. |