Los verbos con la forma de Yo irregular

These are a group of verbs which follow the normal conjugation patterns in all cases except the "Yo"  form.  The endings are still either "o"  or "oy", * but we add extra letters not seen in the infinitive.

Remember that regular present tense -Ar, -Er  and -Ir  verbs are conjugated by removing the -ar, -er,or -ir infinitive endings and adding the correct endings for each conjugation:

1. Hablar 2. Habl---->ar
3. Habl- 4. +one of the endings:  o, as, a, amos, an
we end up with ----> Hablo, Hablas, Habla, Hablamos, Hablan.

But some verbs conjugate differently in the Yo form.  They don't simply add "o".
Dar  and Ver  are among the irregular Yo form verbs.  Because they are three-letters long,  we have to add a bit more back to the Yo form:

1. Ver 2. V---->er
3. V- 4. +one of the endings:  o, es, e, emos, en
5. we end up with ----> *Vo, ves, ve, vemos, ven
6. We have to add the "e" back in for "yo" :  V + eo ----> Veo
Dar adds the "oy" like Ser, Ir  and Estar do.
 1. Dar 2. D---->ar 
 3. D- 4. + oy, es, e, emos, en
we end up with ----> Doy, da, das, damos, dan
Subject Pronoun Poner Salir Conocer
Yo Pongo Salgo Conozco
Pones Sales Conoces
Él, ella, Usted Pone Sale Conoce
Nosotros Ponemos Salimos Conocemos
Ellos, ellas, Ustedes Ponen Salen Conocen

Saber (to know) has a unique irregular "yo" form, , but is regular in all the other forms of conjugation:

sabes
sabe
sabemos
saben

Some verbs like Oír not only have an irregular Yo form but also have additional changes.  The yo form is irregular, but so are the other forms. Notice the Nosotros  form stays true to the infinitive form, carrying an accented "í".

yo Él, ella, Usted Nosotros Ellos, ellas, Uds.
Oír  oigo oyes oye oímos oyen
 
Look at another verb which has an irregular Yo form and is a stem-changer Look at Stem-changing verbs Examples of other Irregular verbs including yo form verbs: scroll down to the second and third sets of examples.
Copyright © 2000 Deborah R. Lemon. All rights reserved.
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