Tener→tengo, hacer→hago, poner→pongo. The 12 essential verbs with irregular -go in yo form.
The other forms conjugate normally. Only the first person singular is irregular.
| Verb | yo form | tú (regular!) | Meaning |
|---|---|---|---|
| tener | tengo | tienes | to have |
| venir | vengo | vienes | to come |
| decir | digo | dices | to say |
| hacer | hago | haces | to do/make |
| poner | pongo | pones | to put |
| salir | salgo | sales | to leave/go out |
| traer | traigo | traes | to bring |
| caer | caigo | caes | to fall |
| oír | oigo | oyes | to hear |
| valer | valgo | vales | to be worth |
| suponer | supongo | supones | to suppose |
| componer | compongo | compones | to compose |
tengo → tenga, tengas, tenga, tengamos, tengan
hago → haga, hagas, haga, hagamos, hagan
salgo → salga, salgas, salga, salgamos, salgan
digo → diga, digas, diga, digamos, digan
This is why yo-go verbs have irregular subjunctive forms.
poner → pongo → componer → compongo, suponer → supongo, proponer → propongo
tener → tengo → mantener → mantengo, obtener → obtengo, contener → contengo
venir → vengo → convenir → convengo, prevenir → prevengo
traer → traigo → atraer → atraigo, distraer → distraigo
Negative tú = subjunctive = from yo form:
No hagas eso. (Don't do that.) | No salgas. (Don't leave.)
No pongas eso ahí. | No digas nada.
1. tener → yo _____ (present)
2. hacer → yo _____ (present)
3. salir → yo _____ (present)
4. Subjunctive of hacer (yo) = _____.
5. poner → yo pongo → subjunctive: que yo _____.
6. suponer → yo _____. (compound of poner)
7. mantener → yo _____. (compound of tener)
8. No _____ eso. (Don't do that — neg. tú command)
9. traer → yo _____.
10. oír → yo _____.
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