Spanish subjunctive mood: “Yo irregular”

Spanish subjunctive mood: “Yo irregular”

They are called “Yo irregular verbs” because if the first person is irregular, the rest are irregular as well.

Type of endings in the Spanish irregular subjunctive verbs:

1) go verbs

2) – zco verbs

3) – zo verbs

4) – gir verbs

5)- guir verbs

6) – uir verbs that add a y

1) – go verbs

Bellow you will see the present subjunctive conjugation of tener, a – go verb.  They are called verbs that end in -go, because the first person of the present indicative  is conjungated Yo tengo…

Let’s see the Spanish conjugation

Subject Verb Subject









tengas vosotros/vosotras tengáis
él tenga ellos tengan
ella tenga ellas tengan
usted tenga ustedes tengan


Please click HERE to see other types of verbs that end in -go

2) – zco verbs

Remember that all the verbs from the present indicative that end in cer and cir have an zco ending when we conjugate the first person. The same happends with the present subjunctive. All forms of the present subjunctive for these verbs will reflect the yo form, as demonstrated i bellow :

For example verb conocer:

Subject Verb Subject Verb
yo conozca nosotros/nosotras conozcamos
conozcas vosotros/vosotras conozcáis
él conozca ellos conozcan
ella conozca ellas conozcan
usted conozca ustedes conozcan

Please click HERE to see other types of verbs that end in -zco


Verbs that also end in – ucir also have endings- zca, -zcas, -zca, -zcamos, -zcáis, and -zcan endings. The present subjunctive yo/él form of each verb follows its translation.

[table id=30 /]

3)- zo verbs

In the present indicative a verb that ends in a consonant followed by – cer has a yo form ending in – zo. Therefore, all forms of the present subjunctive for these verbs will reflect the yoform, as demonstrated below:

For example, ejercer in the present yo, is yo ejerzo.



Verb Subject


yo ejerza nosotros/nosotras ejerzamos
ejerzas vosotros/vosotras ejerzáis
él ejerza ellos ejerzan
ella ejerza ellas ejerzan
usted ejerza ustedes ejerzan


HERE to see other types of verbs that end in -zo

4)- gir verbs

A verb that ends in – gir in its infinitive form have to change the g to j to maintain the soft g sound in all forms of the present subjunctive (like in the present simple). For this topic, please the G rule, click HERE to review it.

Let’s see the example like Dirigir:


Verb Subject


yo dirija nosotros/nosotras dirijamos
dirijas vosotros/vosotras dirijáis
él dirija ellos dirijan
ella dirija ellas dirijan
usted dirija ustedes dirijan


Click HERE to see more examples


5)- guir verbs

Verbs that end in – guir includes a u in its infinitive form only to attain a hard g sound. In all forms of the subjunctive, you must drop that u; because the g is now followed by an a, it is already pronounced hard. Please click HERE to review the G rules

There is, however, one extra issue: Seguir is a stem-changer, and thee changes to i in all forms of the present subjunctive.

Let’ see the example  SEGUIR (to follow):


Subject Verb Subject Verb
yo siga nosotros/nosotras sigamos
sigas vosotros/vosotras sigáis
él siga ellos sigan
ella siga ellas sigan
usted siga ustedes sigan


Let’s see more Spanish subjunctive irregular verbs that end in guir. Please click HERE to see the examples


6) – uir verbs that add a y

Any verb that ends in – uir (except – guir verbs) will have a y in front of the subjunctive ending for all forms.

Let’s see an example:


Subject Verb Subject Verb
yo contribuya nosotros/nosotras contribuyamos
contribuyas vosotros/vosotras contribuyáis
él contribuya ellos contribuyan
ella contribuya ellas contribuyan
usted contribuya ustedes contribuyan 

Can you see that they have a y in front of the subjunctive?



Click HERE to see other examples

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