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55. Verbs where -o becomes -go

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Lesson 55: Verbs where -o becomes -go

Spanish has a large number of irregular verbs. Luckily, most of them can be categorized in groups which are irregular in the same way. In this lesson you will learn a group of verbs that changes the first person ending -o into -go in the present tense.

Common verbs which do this are hacer, salir, valer and poner. If another verb ends in one of these verbs, for example suponer, you can be almost certain that it will conjugate in the same way.

to do, to make hacer
to leave, to go out salir
to be worth, to cost valer
to put poner
-o → -go Singular Plural
First person hago
salgo
valgo
pongo
hacemos
salimos
valemos
ponemos
Second person haces
sales
vales
pones
hacéis
salís
valéis
ponéis
Third person hace
sale
vale
pone
hacen
salen
valen
ponen

Note that hacer is an exception here, since we don't only add a g, but also drop the c to make hago.

Lesson contributors

Erik