ZCO Verbs

1. ALWAYS and ER or an IR verb  (Specifically: CER or CIR)
2. 1st person indicative endings go to ==> ZCO (Yo abastezco) (*MINOR* difference)
3. Present Subjunctive uses the 1st person indicative root to form the subjunctive root (Yo abastezca)
 Also... Present Subjunctive means the ER & IR verbs become AR-verbs in Present subjunctive
 And... since this list has only ER & IR verbs (no AR verbs) ... this is the main difference
4. A '*' before a verb means the Preterite Root Verb converts the CER & CIR to a 'J'
 aducir ==> aduje, adujiste, adujo (all 6 of the preterite-indicative verb forms)
 NOTE: *** when the CER or CIR goes to "J" (all six preterite forms, NO ACCENTED VERB ENDINGS ARE NEEDED)
       *** aduje, adujiste, adujo DON'T have accented syllables (like regular preterite verbs do)

abastecer  to supply
aborrecer  to detest, abhor
acontecer  to happen, occur, come about
adolecer  to suffer
* aducir  to allege, adduce, cite, give as proof
agradecer  to thank for, to be thankful for
amanecer  to dawn, get light, wake up at dawn
anochecer  to become night, get dark, be somewhere by dark
aparecer  to show up, appear
apetecer  to desire
balbucir  to stammer
carecer  to lack, be without
compadecer  to feel sorry, pity
comparecer  to appear
* conducir  to drive, conduct
conocer  to know, be familiar with
crecer  to grow
decrecer  to decrease
* deducir  to deduce, deduct, infer
desagradecer  to be unthankful for, to be unappreciative of
desaparecer  to disappear
desconocer  to ignore, be unacquainted with, disown, shun, no longer know or be familiar with
desentumecer  to loosen up
desfallecer  to become weak, wear out
desfavorecer  to work against, disfavor
deslucir  to spoil, tarnish, mark
desmerecer  to criticize
desobedecer  to disobey
desvanecer  to vanish
embellecer  to embellish, make beautiful
embrutecer  to stultify
empobrecer  to impoverish, make poor, break financially
enaltecer  to praise
enardecer  to inflame, light up, go aflame
encarecer  to increase in price, charge more
endurecer  to harden, make hard
enflaquecer  to make thin, to weaken, to thin out, to grow weak
enfurecer  to infuriate, make irate
enloquecer  to drive crazy, madden, drive insane, distract
enmohecer  to rust, mildew, go mouldy
enmudecer  to go silent, to become mute
ennegrecer  to blacken, go dark, darken
ennoblecer  to ennoble, make noble, reach nobility
enorgullecer  to be proud of, grow proud
enriquecer  to enrich, grow rich, become rich
enrojecer  to turn red, blush,
ensombrecer  to grow dark, darken, shade
ensordecer  to deafen, go deaf
enternecer  to get moved, be touched
entorpecer  to dull, blunt, make sluggish, delay, obstruct
entristecer  to sadden, make sad
! envejecerse  to age, grow old
establecer  to establish
estremecer  to shake, make tremble, make shudder, thrill
fallecer  to pass away, decease, die, fade away
favorecer  to favor, work in favor of, help, aid, support
florecer  to flower, bloom, blossom
fortalecer  to fortify, strengthen
fosforecer  to be luminous, phosphoresce
guarecer  to give shelter, protect, preserve from harm
humedecer  to dampen, moisten, wet, humidify
* inducir  to induce, persuade, instigate
* introducir  to introduce
languidecer  to languish, pine away
lucir  to shine, glitter, glow
merecer  to earn, deserve, merit
nacer  to be born
negrecer  to turn black, become black
obedecer  to obey
ofrecer  to offer
oscurecer  to obscure, get dark, darken
padecer  to suffer, undergo, be subjected to, experience
palidecer  to wane, go pale, turn pale
parecer  to seem, appear, resemble
permanecer  to remain, stay, endure
pertenecer  to belong, pertain, concern
prevalecer  to prevail
* producir  to produce
reaparecer  to reappear, show up again
reblandecer  to soften, make soft, tenderize
reconocer  to recognize
recrudecer  to get worse, break down again
* reducir  to reduce, diminish
relucir  to shine, be brilliant, excel, glow
* reproducir  to reproduce
resplandecer  to shine brightly, glitter, glow, be resplendant
restablecer  to re-establish, restore
* seducir  to seduce
* traducir to translate
yacer  to lie, be lying down, be situated

Here is the HTML if you need it later on

<TR><TD>abastecer</TD><TD>&nbsp;&nbsp;to supply</TD></TR>
<TR><TD>aborrecer</TD><TD>&nbsp;&nbsp;to detest, abhor</TD></TR>
<TR><TD>acontecer</TD><TD>&nbsp;&nbsp;to happen, occur, come about</TD></TR>
<TR><TD>adolecer</TD><TD>&nbsp;&nbsp;to suffer</TD></TR>
<TR><TD>* aducir</TD><TD>&nbsp;&nbsp;to allege, adduce, cite, give as proof</TD></TR>
<TR><TD>agradecer</TD><TD>&nbsp;&nbsp;to thank for, to be thankful for</TD></TR>
<TR><TD>amanecer</TD><TD>&nbsp;&nbsp;to dawn, get light, wake up at dawn</TD></TR>
<TR><TD>anochecer</TD><TD>&nbsp;&nbsp;to become night, get dark, be somewhere by dark</TD></TR>
<TR><TD>aparecer</TD><TD>&nbsp;&nbsp;to show up, appear</TD></TR>
<TR><TD>apetecer</TD><TD>&nbsp;&nbsp;to desire</TD></TR>
<TR><TD>balbucir</TD><TD>&nbsp;&nbsp;to stammer</TD></TR>
<TR><TD>carecer</TD><TD>&nbsp;&nbsp;to lack, be without</TD></TR>
<TR><TD>compadecer</TD><TD>&nbsp;&nbsp;to feel sorry, pity</TD></TR>
<TR><TD>comparecer</TD><TD>&nbsp;&nbsp;to appear</TD></TR>
<TR><TD>* conducir</TD><TD>&nbsp;&nbsp;to drive, conduct</TD></TR>
<TR><TD>conocer</TD><TD>&nbsp;&nbsp;to know, be familiar with</TD></TR>
<TR><TD>crecer</TD><TD>&nbsp;&nbsp;to grow</TD></TR>
<TR><TD>decrecer</TD><TD>&nbsp;&nbsp;to decrease</TD></TR>
<TR><TD>* deducir</TD><TD>&nbsp;&nbsp;to deduce, deduct, infer</TD></TR>
<TR><TD>desagradecer</TD><TD>&nbsp;&nbsp;to be unthankful for, to be unappreciative of</TD></TR>
<TR><TD>desaparecer</TD><TD>&nbsp;&nbsp;to disappear</TD></TR>
<TR><TD>desconocer</TD><TD>&nbsp;&nbsp;to ignore, be unacquainted with, disown, shun, no longer know or be familiar with</TD></TR>
<TR><TD>desentumecer</TD><TD>&nbsp;&nbsp;to loosen up</TD></TR>
<TR><TD>desfallecer</TD><TD>&nbsp;&nbsp;to become weak, wear out</TD></TR>
<TR><TD>desfavorecer</TD><TD>&nbsp;&nbsp;to work against, disfavor</TD></TR>
<TR><TD>deslucir</TD><TD>&nbsp;&nbsp;to spoil, tarnish, mark</TD></TR>
<TR><TD>desmerecer</TD><TD>&nbsp;&nbsp;to criticize</TD></TR>
<TR><TD>desobedecer</TD><TD>&nbsp;&nbsp;to disobey</TD></TR>
<TR><TD>desvanecer</TD><TD>&nbsp;&nbsp;to vanish</TD></TR>
<TR><TD>embellecer</TD><TD>&nbsp;&nbsp;to embellish, make beautiful</TD></TR>
<TR><TD>embrutecer</TD><TD>&nbsp;&nbsp;to stultify</TD></TR>
<TR><TD>empobrecer</TD><TD>&nbsp;&nbsp;to impoverish, make poor, break financially</TD></TR>
<TR><TD>enaltecer</TD><TD>&nbsp;&nbsp;to praise</TD></TR>
<TR><TD>enardecer</TD><TD>&nbsp;&nbsp;to inflame, light up, go aflame</TD></TR>
<TR><TD>encarecer</TD><TD>&nbsp;&nbsp;to increase in price, charge more</TD></TR>
<TR><TD>endurecer</TD><TD>&nbsp;&nbsp;to harden, make hard</TD></TR>
<TR><TD>enflaquecer</TD><TD>&nbsp;&nbsp;to make thin, to weaken, to thin out, to grow weak</TD></TR>
<TR><TD>enfurecer</TD><TD>&nbsp;&nbsp;to infuriate, make irate</TD></TR>
<TR><TD>enloquecer</TD><TD>&nbsp;&nbsp;to drive crazy, madden, drive insane, distract</TD></TR>
<TR><TD>enmohecer</TD><TD>&nbsp;&nbsp;to rust, mildew, go mouldy</TD></TR>
<TR><TD>enmudecer</TD><TD>&nbsp;&nbsp;to go silent, to become mute</TD></TR>
<TR><TD>ennegrecer</TD><TD>&nbsp;&nbsp;to blacken, go dark, darken</TD></TR>
<TR><TD>ennoblecer</TD><TD>&nbsp;&nbsp;to ennoble, make noble, reach nobility</TD></TR>
<TR><TD>enorgullecer</TD><TD>&nbsp;&nbsp;to be proud of, grow proud</TD></TR>
<TR><TD>enriquecer</TD><TD>&nbsp;&nbsp;to enrich, grow rich, become rich</TD></TR>
<TR><TD>enrojecer</TD><TD>&nbsp;&nbsp;to turn red, blush,</TD></TR>
<TR><TD>ensombrecer</TD><TD>&nbsp;&nbsp;to grow dark, darken, shade</TD></TR>
<TR><TD>ensordecer</TD><TD>&nbsp;&nbsp;to deafen, go deaf</TD></TR>
<TR><TD>enternecer</TD><TD>&nbsp;&nbsp;to get moved, be touched</TD></TR>
<TR><TD>entorpecer</TD><TD>&nbsp;&nbsp;to dull, blunt, make sluggish, delay, obstruct</TD></TR>
<TR><TD>entristecer</TD><TD>&nbsp;&nbsp;to sadden, make sad</TD></TR>
<TR><TD>! envejecerse</TD><TD>&nbsp;&nbsp;to age, grow old</TD></TR>
<TR><TD>establecer</TD><TD>&nbsp;&nbsp;to establish</TD></TR>
<TR><TD>estremecer</TD><TD>&nbsp;&nbsp;to shake, make tremble, make shudder, thrill</TD></TR>
<TR><TD>fallecer</TD><TD>&nbsp;&nbsp;to pass away, decease, die, fade away</TD></TR>
<TR><TD>favorecer</TD><TD>&nbsp;&nbsp;to favor, work in favor of, help, aid, support</TD></TR>
<TR><TD>florecer</TD><TD>&nbsp;&nbsp;to flower, bloom, blossom</TD></TR>
<TR><TD>fortalecer</TD><TD>&nbsp;&nbsp;to fortify, strengthen</TD></TR>
<TR><TD>fosforecer</TD><TD>&nbsp;&nbsp;to be luminous, phosphoresce</TD></TR>
<TR><TD>guarecer</TD><TD>&nbsp;&nbsp;to give shelter, protect, preserve from harm</TD></TR>
<TR><TD>humedecer</TD><TD>&nbsp;&nbsp;to dampen, moisten, wet, humidify</TD></TR>
<TR><TD>* inducir</TD><TD>&nbsp;&nbsp;to induce, persuade, instigate</TD></TR>
<TR><TD>* introducir</TD><TD>&nbsp;&nbsp;to introduce</TD></TR>
<TR><TD>languidecer</TD><TD>&nbsp;&nbsp;to languish, pine away</TD></TR>
<TR><TD>lucir</TD><TD>&nbsp;&nbsp;to shine, glitter, glow</TD></TR>
<TR><TD>merecer</TD><TD>&nbsp;&nbsp;to earn, deserve, merit</TD></TR>
<TR><TD>nacer</TD><TD>&nbsp;&nbsp;to be born</TD></TR>
<TR><TD>negrecer</TD><TD>&nbsp;&nbsp;to turn black, become black</TD></TR>
<TR><TD>obedecer</TD><TD>&nbsp;&nbsp;to obey</TD></TR>
<TR><TD>ofrecer</TD><TD>&nbsp;&nbsp;to offer</TD></TR>
<TR><TD>oscurecer</TD><TD>&nbsp;&nbsp;to obscure, get dark, darken</TD></TR>
<TR><TD>padecer</TD><TD>&nbsp;&nbsp;to suffer, undergo, be subjected to, experience</TD></TR>
<TR><TD>palidecer</TD><TD>&nbsp;&nbsp;to wane, go pale, turn pale</TD></TR>
<TR><TD>parecer</TD><TD>&nbsp;&nbsp;to seem, appear, resemble</TD></TR>
<TR><TD>permanecer</TD><TD>&nbsp;&nbsp;to remain, stay, endure</TD></TR>
<TR><TD>pertenecer</TD><TD>&nbsp;&nbsp;to belong, pertain, concern</TD></TR>
<TR><TD>prevalecer</TD><TD>&nbsp;&nbsp;to prevail</TD></TR>
<TR><TD>* producir</TD><TD>&nbsp;&nbsp;to produce</TD></TR>
<TR><TD>reaparecer</TD><TD>&nbsp;&nbsp;to reappear, show up again</TD></TR>
<TR><TD>reblandecer</TD><TD>&nbsp;&nbsp;to soften, make soft, tenderize</TD></TR>
<TR><TD>reconocer</TD><TD>&nbsp;&nbsp;to recognize</TD></TR>
<TR><TD>recrudecer</TD><TD>&nbsp;&nbsp;to get worse, break down again</TD></TR>
<TR><TD>* reducir</TD><TD>&nbsp;&nbsp;to reduce, diminish</TD></TR>
<TR><TD>relucir</TD><TD>&nbsp;&nbsp;to shine, be brilliant, excel, glow</TD></TR>
<TR><TD>* reproducir</TD><TD>&nbsp;&nbsp;to reproduce</TD></TR>
<TR><TD>resplandecer</TD><TD>&nbsp;&nbsp;to shine brightly, glitter, glow, be resplendant</TD></TR>
<TR><TD>restablecer</TD><TD>&nbsp;&nbsp;to re-establish, restore</TD></TR>
<TR><TD>* seducir</TD><TD>&nbsp;&nbsp;to seduce</TD></TR>
<TR><TD>* traducir to translate</TD></TR>
<TR><TD>yacer</TD><TD>&nbsp;&nbsp;to lie, be lying down, be situated</TD></TR>