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List of Verbs: Yo form ends -zco

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-ar verbs
-er verbs
-ir verbs
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Use correct verb forms when speaking Spanish!
TASK:
Go through the listings of verbs and learn new ones each time you visit a page. Study their conjugation patterns to get them down!
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This list of verbs is intended to be used for the following purposes:
To learn new vocabulary.
To practice pronunciation. Just going down a list and clicking on the colored dots gives you the chance to LISTEN to vocabulary, which in turn subliminally provides acceptance to more readily producing the sounds heard. (It's only a theory! Geez!!!)
To go to Mexico and arrange that divorce you want so badly.
To visualize conjugation patterns (in groups of verbs).
To challenge your mind.

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Master Verb List
Master -AR
Master -ER
Master -IR
Regular -AR
Regular -ER
Regular -IR
Ending -car
Ending -gar
Ending -iar: i - í
Ending -zar
Ending -zco
Stem Change e->ie
Stem Change o->ue
Stem Change e->i
Lección:
Verbs getting -zco
Verbs with an infinitive ending in -ocer, -ecer, or -ucir often have a root change in the yo form, present tense indicative. This change carries over into all present subjunctive forms.

Note that a Z comes before the C in the present tense yo form. If you make the error of omitting the Z and add the normal endings required, you will form an incorrect spelling!

Note also that the preterite forms are altered for the -ucir verbs. This ending is highly irregular.

None of the verbs in this listing are -AR verbs. They all fall in the categories of -ER and -IR verbs.

This group of verbs has an irregularity. The irregularity occurs in the present tense indicative YO form which ends with a Z before the C (becoming zco). This is the form that is used as the basis for the formation of the present subjunctive conjugation of all forms.

(Note also that the -ucir verbs have an irregular preterite, as well.)

Click on the various items in the top row below to hear explanations:
español
stem change
"yo"
subj stem
¿pretérito?
¿futuro?
inglés
  abastecer
-zco
abastezc-
to supply
  aborrecer
-zco
aborrezc-
to detest, abhor
  acontecer
-zco
acontezc-
to happen, occur, come about
  adolecer
-zco
adolezc-
to suffer
  aducir
-zco
aduzc-
aduj-
to allege, adduce, cite, give as proof
agradecer
-zco
agradezc-
to thank for, to be thankful for
amanecer
-zco
amanezc-
to dawn, get light, wake up at dawn
anochecer
-zco
anochezc-
to become night, get dark, be somewhere by dark
aparecer
-zco
aparezc-
to show up, appear
  apetecer
-zco
apetezc-
to desire
  balbucir
-zco
balbuzc-
to stammer
carecer
-zco
carezc-
to lack, be without
  compadecer
-zco
compadezc-
  to feel sorry, pity
  comparecer
-zco
comparezc-
  to appear
conducir
-zco
conduzc-
conduj-
to drive, conduct
conocer
-zco
conozc-
to know, be familiar with
crecer
-zco
crezc-
to grow
  decrecer
-zco
decrezc-
to decrease
deducir
-zco
deduzc-
deduj-
to deduce, deduct, infer
  desagradecer
-zco
desagradezc-
to be unthankful for, to be unappreciative of
desaparecer
-zco
desaparezc-
to disappear
desconocer
-zco
desconozc-
to ignore, be unacquainted with, disown, shun, no longer know or be familiar with
  desentumecer
-zco
desentumezc-
to loosen up
  desfallecer
-zco
desfallezc-
to become weak, wear out
  desfavorecer
-zco
desfavorezc-
to work against, disfavor
  deslucir
-zco
desluzc-
to spoil, tarnish, mark
  desmerecer
-zco
desmerezc-
to criticize
  desobedecer
-zco
desobedezc-
to disobey
  desvanecer
-zco
desvanezc-
to vanish
  embellecer
-zco
embellezc-
to embellish, make beautiful
  embrutecer
-zco
embrutezc-
to stultify
  empobrecer
-zco
empobrezc-
to impoverish, make poor, break financially
  enaltecer
-zco
enaltezc-
to praise
  enardecer
-zco
enardezc-
to inflame, light up, go aflame
  encarecer
-zco
encarezc-
to increase in price, charge more
  endurecer
-zco
endurezc-
to harden, make hard
  enflaquecer
-zco
enflaquezc-
to make thin, to weaken, to thin out, to grow weak
  enfurecer
-zco
enfurezc-
to infuriate, make irate
enloquecer
-zco
enloquezc-
to drive crazy, madden, drive insane, distract
  enmohecer
-zco
enmohezc-
to rust, mildew, go mouldy
  enmudecer
-zco
enmudezc-
to go silent, to become mute
  ennegrecer
-zco
ennegrezc-
to blacken, go dark, darken
  ennoblecer
-zco
ennoblezc-
to ennoble, make noble, reach nobility
  enorgullecer
-zco
enorgullezc-
to be proud of, grow proud
enriquecer
-zco
enriquezc-
to enrich, grow rich, become rich
  enrojecer
-zco
enrojezc-
to turn red, blush,
  ensombrecer
-zco
ensombrezc-
to grow dark, darken, shade
  ensordecer
-zco
ensordezc-
to deafen, go deaf
  enternecer
-zco
enternezc-
to get moved, be touched
  entorpecer
-zco
entorpezc-
to dull, blunt, make sluggish, delay, obstruct
  entristecer
-zco
entristezc-
to sadden, make sad
envejecerse
-zco
envejezc-
to age, grow old
establecer
-zco
establezc-
to establish
  estremecer
-zco
estremezc-
to shake, make tremble, make shudder, thrill
  fallecer
-zco
fallezc-
to pass away, decease, die, fade away
  favorecer
-zco
favorezc-
to favor, work in favor of, help, aid, support
florecer
-zco
florezc-
to flower, bloom, blossom
  fortalecer
-zco
fortalezc-
to fortify, strengthen
  fosforecer
-zco
fosforezc-
to be luminous, phosphoresce
  guarecer
-zco
guarezc-
to give shelter, protect, preserve from harm
  humedecer
-zco
humedezc-
to dampen, moisten, wet, humidify
inducir
-zco
induzc-
induj-
to induce, persuade, instigate
introducir
-zco
introduzc-
introduj-
to introduce
  languidecer
-zco
languidezc-
to languish, pine away
  lucir
-zco
luzc-
to shine, glitter, glow
merecer
-zco
merezc-
to earn, deserve, merit
nacer
-zco
nazc-
to be born
  negrecer
-zco
negrezc-
to turn black, become black
obedecer
-zco
obedezc-
to obey
ofrecer
-zco
ofrezc-
to offer
  oscurecer
-zco
oscurezc-
to obscure, get dark, darken
padecer
-zco
padezc-
to suffer, undergo, be subjected to, experience
  palidecer
-zco
palidezc-
to wane, go pale, turn pale
parecer
-zco
parezc-
to seem, appear, resemble
permanecer
-zco
permanezc-
to remain, stay, endure
pertenecer
-zco
pertenezc-
to belong, pertain, concern
  prevalecer
-zco
prevalezc-
to prevail
producir
-zco
produzc-
produj-
to produce
  reaparecer
-zco
reaparezc-
to reappear, show up again
  reblandecer
-zco
reblandezc-
to soften, make soft, tenderize
  reconocer
-zco
reconozc-
to recognize
recrudecer
-zco
recrudezc-
to get worse, break down again
reducir
-zco
reduzc-
reduj-
to reduce, diminish
  relucir
-zco
reluzc-
to shine, be brilliant, excel, glow
  reproducir
-zco
reproduzc-
reproduj-
to reproduce
  resplandecer
-zco
resplandezc-
to shine brightly, glitter, glow, be resplendant
  restablecer
-zco
restablezc-
to re-establish, restore
  seducir
-zco
seduzc-
seduj-
to seduce
traducir
-zco
traduzc-
traduj-
to translate
yacer
-zco
yazc-
to lie, be lying down, be situated