conjugation.present.yo-go
The -go verbs: tengo, pongo, salgo, hago
A family of verbs whose yo form ends in -go: tener → tengo, poner → pongo, salir → salgo, hacer → hago, decir → digo, oír → oigo. The other persons follow their own pattern.
conjugationA1, A2standardinternally_reviewedv1.0.0
Explanation
These verbs are irregular only (or mainly) in the yo form, which ends in -go: hago, pongo, salgo, valgo, traigo, caigo, oigo, tengo, vengo, digo.
Several combine the -go form with a stem change in the other boot persons: tener → tengo but tienes, tiene, tienen; venir → vengo but vienes; decir → digo but dices.
The -go form matters beyond the present: the whole present subjunctive is built on it (tenga, ponga, salga, haga, diga, oiga). Learn the yo form and you get six subjunctive forms for free.
Examples
I have two brothers.
Region: global
I leave work at six.
Region: global
I'm telling you the truth.
Region: global