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Rules for IRREGULAR first person, singular, present tense verbs
For verbs that end in -cer and -cir, change the c to zc for the “yo” form:
SPANISH VERB
ENGLISH MEANING
IRREGULAR “YO” FORM
conocer
to know, be acquainted with
yo conozco
conducir
to drive
yo conduzco
crecer
to grow
yo crezco
establecer
to establish
yo establezco
producir
to produce
yo produzco
traducir
to translate
yo traduzco
For verbs that end in -ger and -gir, change the g to j for the “yo” form:
SPANISH VERB
ENGLISH MEANING
IRREGULAR “YO” FORM
dirigir
to direct
yo dirijo
emerger
to emerge
yo emerjo
escoger
to choose
yo escojo
fingir
to pretend
yo finjo
For verbs that end in -guir, change the gu to g for the “yo” form:
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SPANISH VERB
ENGLISH MEANING
IRREGULAR “YO” FORM
conseguir
to obtain, to get
yo consigo
distinguir
to distinguish
yo distingo
seguir
to follow
yo sigo
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In “yo” form, these verbs end with go:
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! caer
to fall
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! hacer
to do, to make
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! poner
to put, to place
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! salir
to leave
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! traer
to bring
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to be worth
! valer
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SPANISH VERB
ENGLISH MEANING
IRREGULAR “YO” FORM
yo caigo
yo hago
yo pongo
yo salgo
yo traigo
yo valgo
Other verbs with an irregular “yo” form:
SPANISH VERB
ENGLISH MEANING
IRREGULAR “YO” FORM
caber
to fit
yo quepo
ver
to see
yo veo
saber
to know something
yo sé
All of the verbs on the front and back of this sheet are irregular in the
“yo” form of the present tense, but have a normal conjugation process in
the other subject areas.
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Ejemplo: saber (to know something)
yo sé
nosotros sabemos
tú sabes
vosotros sabéis
él, ella, o Ud. sabe
ellos, ellas, o Uds. saben