Unit 7 - Irregular Verbs in the Present Tense
Lesson 7.6 - Verbs that End With -zco in the Yo Form
Exercises 7.6 Quiz 7.6
Topic:

Verbs whose stem ends in -c generally add a "z" in the Yo form, which then ends with -zco.

The "Conozco" forms

Almost all verbs whose stem ends with -c have a special change in the present tense Yo form.

The easiest of these verbs to remember is conocer Play Audio , which means to know, when referring to people or places.

In the Yo form, this becomes the rather charming conozco Play Audio , with a "z" added before the "c".

An Example of the Spice in Spanish

It may seem silly but I really enjoy these particular verb forms. They contribute something special to the sound of the language, and they are just fun to pronounce.

Present Tense Conjugation of conocer

Subject
Verb Form
Subject
Verb Form
Yo
Play Audio
conozco
Nosotros
Play Audio
conocemos
Play Audio
conoces
Vosotros
Play Audio
conocéis
Él/Ella
Play Audio
conoce
Ellos
Play Audio
conocen

For good measure, here's one more... ofrecer Play Audio which means to offer.

Present Tense Conjugation of ofrecer

Subject
Verb Form
Subject
Verb Form
Yo
Play Audio
ofrezco
Nosotros
Play Audio
ofrecemos
Play Audio
ofreces
Vosotros
Play Audio
ofrecéis
Él/Ella
Play Audio
ofrece
Ellos
Play Audio
ofrecen

Very Few Exceptions

I said almost all verbs whose stem ends with -c behave this way, and you have already studied the main exceptions, decir and hacer.

As we saw earlier, those two verbs are quite irregular.


Also, if a verb stem has a consonant before the final -c, the Yo form becomes just -zo instead of -zco.

Not many verbs have a consonant in that spot. One that does is ejercer (to exercise), where the Yo form becomes just ejerzo.

All Yo -zco Forms in the Exercises

You can treat these exercises almost as a practice time for regular conjugation. Just remember that the Yo forms need an extra z.


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Additional Study Resources

Videos:
It's a simple topic, but here is a video on the subject. (2:52)
Websites:
If you want a much longer list of verbs that follow this pattern, this site delivers.
Books:
Chapter 9, Irregular verb groups, 4th edition pg 73.
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