What are Irregular Yo Forms? | Simple Present

Irregular Yo Forms

What are irregular yo forms?

It’s time to learn how to use irregular yo forms in Spanish. Study the Spanish conjugation with online lessons. Learn the basic grammar rules.

Note: Verbs that end in “- guir”“- ger”, or “- gir” undergo a spelling change in their Present Tense “yo” forms.

  1. For verbs that end in – guir, the yo form ends in go.
  2. For verbs that end in – ger or – gir, the g in the yo form changes to a j.


Infinitive – “yo” form

extinguir (to extinguish) – extingo

dirigir (to direct) – dirijo

escoger (to choose) – escojo

exigir (to demand) – exijo

recoger (to pick up) – recojo



List of verbs with “yo” forms

Infinitive “yo” form

caber (to fit) quepo

caer (to fall) caigo

conocer (to know) conozco

dar (to give) doy

hacer (to do/make) hago

poner (to put) pongo

saber (to know) 

salir (to leave/to go out) salgo

traducir (to translate) traduzco

traer (to bring) traigo

valer (to be worth) valgo

ver (to see) veo



Note: Most verbs that end in “cer” or “ucir” have irregular Present Tense “yo” forms

Infinitive- “yo” form English

Conducer -conduzco to drive

Producer -produzco to produce

Hacer -hago to do

Amanecer -amanezco to dawn


Prefixes Count

Note: Verbs made of up the above forms plus a prefix are also irregular in the “yo” form.

Infinitive – “yo” form English

Componer -compongo to compose

Deshacer -deshago to undo

Disponer -dispongo to make available

Distraer – distraigo to distract

Proponer- propongo to propose

Rehacer -rehago to redo

Reponer – repongo to put back

Suponer – supongo to suppose

 Read more about the Spanish conjugations



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