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Notes: Stem Changing Verbs

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Page 1: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

Notes:Stem Changing Verbs

Page 2: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

¿Recuerdas?

What is the stem of an infinitive?

It is what is left after the –ar/-er/-ir are removed from the infinitive.

Page 3: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

hablar

Page 4: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

hablar habl

Page 5: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

hablar habl

comer

Page 6: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

hablar habl

comer com

Page 7: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

hablar habl

comer com

vivir

Page 8: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

hablar habl

comer com

vivir viv

Page 9: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

Sometimes, there are changes made to the stem when it is conjugated.

You will see these changes noted on your vocabulary lists.

querer (eie)

Page 10: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

Conjugating a stem changing verb:

Page 11: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive
Page 12: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

Page 13: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo nosotros,as

tú vosotros,as

ud. uds.

él ellos

ella ellas

(it/s.s.) (p.s.)

Page 14: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo nosotros,as

tú vosotros,as

ud. uds.

él ellos

ella ellas

(it/s.s.) (p.s.)

Page 15: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo nosotros,as

tú vosotros,as

ud. uds.

él ellos

ella ellas

(it/s.s.) (p.s.)

Page 16: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

¿Recuerdas?

You must make a change to the stem before adding the verb endings.

Page 17: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

The verb querer has an e to ie stem change.

So you must change the e in the stem to ie before you add the verb endings. Original stem: quer

New stem: quier

Page 18: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

¡IMPORTANTE!

A stem change NEVER affects the nosotros and vosotros forms of the conjugation.

The nosotros and vosotros keep the original stem.

Page 19: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

So for the verb querer, the nosotros and vosotros forms of the conjugation will use the orginal stem:

quer

Page 20: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo nosotros,as

tú vosotros,as

ud. uds.

él ellos

ella ellas

(it/s.s.) (p.s.)

Page 21: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quier nosotros,as

tú quier vosotros,as

ud. quier uds. quier

él quier ellos quier

ella quier ellas quier

(it/s.s.) quier (p.s.) quier

Page 22: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quier nosotros,as quer

tú quier vosotros,as

ud. quier uds. quier

él quier ellos quier

ella quier ellas quier

(it/s.s.) quier (p.s.) quier

Page 23: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quier nosotros,as quer

tú quier vosotros,as quer

ud. quier uds. quier

él quier ellos quier

ella quier ellas quier

(it/s.s.) quier (p.s.) quier

Page 24: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as quer

tú quier vosotros,as quer

ud. quier uds. quier

él quier ellos quier

ella quier ellas quier

(it/s.s.) quier (p.s.) quier

Page 25: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as quer

tú quieres vosotros,as quer

ud. quier uds. quier

él quier ellos quier

ella quier ellas quier

(it/s.s.) quier (p.s.) quier

Page 26: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as quer

tú quieres vosotros,as quer

ud. quiere uds. quier

él quier ellos quier

ella quier ellas quier

(it/s.s.) quier (p.s.) quier

Page 27: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as quer

tú quieres vosotros,as quer

ud. quiere uds. quier

él quiere ellos quier

ella quier ellas quier

(it/s.s.) quier (p.s.) quier

Page 28: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as quer

tú quieres vosotros,as quer

ud. quiere uds. quier

él quiere ellos quier

ella quiere ellas quier

(it/s.s.) quier (p.s.) quier

Page 29: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as quer

tú quieres vosotros,as quer

ud. quiere uds. quier

él quiere ellos quier

ella quiere ellas quier

(it/s.s.) quiere (p.s.) quier

Page 30: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as queremos

tú quieres vosotros,as quer

ud. quiere uds. quier

él quiere ellos quier

ella quiere ellas quier

(it/s.s.) quiere (p.s.) quier

Page 31: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as queremos

tú quieres vosotros,as queréis

ud. quiere uds. quier

él quiere ellos quier

ella quiere ellas quier

(it/s.s.) quiere (p.s.) quier

Page 32: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as queremos

tú quieres vosotros,as queréis

ud. quiere uds. quieren

él quiere ellos quier

ella quiere ellas quier

(it/s.s.) quiere (p.s.) quier

Page 33: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as queremos

tú quieres vosotros,as queréis

ud. quiere uds. quieren

él quiere ellos quieren

ella quiere ellas quier

(it/s.s.) quiere (p.s.) quier

Page 34: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as queremos

tú quieres vosotros,as queréis

ud. quiere uds. quieren

él quiere ellos quieren

ella quiere ellas quieren

(it/s.s.) quiere (p.s.) quier

Page 35: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

querer (eie) – to want

yo quiero nosotros,as queremos

tú quieres vosotros,as queréis

ud. quiere uds. quieren

él quiere ellos quieren

ella quiere ellas quieren

(it/s.s.) quiere (p.s.) quieren

Page 36: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

There are different types of stem changes:

eie, ei, ou, oue

Let’s try another one:

dormir (oue): to sleep

Page 37: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

Page 38: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo nosotros,as

tú vosotros,as

ud. uds.

él ellos

ella ellas

(it/s.s.) (p.s.)

Page 39: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo nosotros,as

tú vosotros,as

ud. uds.

él ellos

ella ellas

(it/s.s.) (p.s.)

Page 40: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo nosotros,as

tú vosotros,as

ud. uds.

él ellos

ella ellas

(it/s.s.) (p.s.)

Page 41: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

So what is the new stem?

duerm

What stem will you use with nosotros and vosotros?

dorm

Page 42: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo nosotros,as

tú vosotros,as

ud. uds.

él ellos

ella ellas

(it/s.s.) (p.s.)

Page 43: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duerm nosotros,as

tú duerm vosotros,as

ud. duerm uds. duerm

él duerm ellos duerm

ella duerm ellas duerm

(it/s.s.) duerm (p.s.) duerm

Page 44: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duerm nosotros,as dorm

tú duerm vosotros,as

ud. duerm uds. duerm

él duerm ellos duerm

ella duerm ellas duerm

(it/s.s.) duerm (p.s.) duerm

Page 45: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duerm nosotros,as dorm

tú duerm vosotros,as dorm

ud. duerm uds. duerm

él duerm ellos duerm

ella duerm ellas duerm

(it/s.s.) duerm (p.s.) duerm

Page 46: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dorm

tú duerm vosotros,as dorm

ud. duerm uds. duerm

él duerm ellos duerm

ella duerm ellas duerm

(it/s.s.) duerm (p.s.) duerm

Page 47: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dorm

tú duermes vosotros,as dorm

ud. duerm uds. duerm

él duerm ellos duerm

ella duerm ellas duerm

(it/s.s.) duerm (p.s.) duerm

Page 48: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dorm

tú duermes vosotros,as dorm

ud. duerme uds. duerm

él duerm ellos duerm

ella duerm ellas duerm

(it/s.s.) duerm (p.s.) duerm

Page 49: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dorm

tú duermes vosotros,as dorm

ud. duerme uds. duerm

él duerme ellos duerm

ella duerm ellas duerm

(it/s.s.) duerm (p.s.) duerm

Page 50: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dorm

tú duermes vosotros,as dorm

ud. duerme uds. duerm

él duerme ellos duerm

ella duerme ellas duerm

(it/s.s.) duerm (p.s.) duerm

Page 51: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dorm

tú duermes vosotros,as dorm

ud. duerme uds. duerm

él duerme ellos duerm

ella duerme ellas duerm

(it/s.s.) duerme (p.s.) duerm

Page 52: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dormimos

tú duermes vosotros,as dorm

ud. duerme uds. duerm

él duerme ellos duerm

ella duerme ellas duerm

(it/s.s.) duerme (p.s.) duerm

Page 53: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dormimos

tú duermes vosotros,as dormís

ud. duerme uds. duerm

él duerme ellos duerm

ella duerme ellas duerm

(it/s.s.) duerme (p.s.) duerm

Page 54: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dormimos

tú duermes vosotros,as dormís

ud. duerme uds. duermen

él duerme ellos duerm

ella duerme ellas duerm

(it/s.s.) duerme (p.s.) duerm

Page 55: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dormimos

tú duermes vosotros,as dormís

ud. duerme uds. duermen

él duerme ellos duermen

ella duerme ellas duerm

(it/s.s.) duerme (p.s.) duerm

Page 56: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dormimos

tú duermes vosotros,as dormís

ud. duerme uds. duermen

él duerme ellos duermen

ella duerme ellas duermen

(it/s.s.) duerme (p.s.) duerm

Page 57: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

dormir (oue) – to sleep

yo duermo nosotros,as dormimos

tú duermes vosotros,as dormís

ud. duerme uds. duermen

él duerme ellos duermen

ella duerme ellas duermen

(it/s.s.) duerme (p.s.) duermen

Page 58: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

Now try one on your own:

pensar (eie): to think

Page 59: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

pensar (eie) – to think

yo pienso nosotros,as pensamos

tú piensas vosotros,as pensáis

ud. piensa uds. piensan

él piensa ellos piensan

ella piensa ellas piensan

(it/s.s.) piensa (p.s.) piensan

Page 60: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

If there is ever a question of which letter to change in the stem, I will underline it for you.

8. preferir (eie): to prefer

preferir

prefer

Page 61: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

If there is ever a question of which letter to change in the stem, I will underline it for you.

8. preferir (eie): to prefer

preferir

prefer

Page 62: Notes: Stem Changing Verbs. ¿Recuerdas? What is the stem of an infinitive? It is what is left after the –ar/-er/-ir are removed from the infinitive

8. preferir (eie): to prefer

Original Stem: prefer

New Stem: prefier