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listings provide verb infinitives, coded by colored balls.
Click on the colored ball to hear the infinitive. Also
indicated are stem-changes, irregular YO
form endings, subjunctive stems, and preterite irregularities.
These key bits of information should be sufficient for
any intermediate learner to successfully conjugate any
given tense for a given verb. See what you can do!
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O
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Click
on an icon or word below to hear instructions:
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español
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stem
change |
"yo"
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subj
stem |
¿pretérito? |
¿futuro? |
inglés
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obedecer |
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-zco |
obedezc- |
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to
obey |
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obligar |
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obligu- |
1st
g-gu |
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to
oblige, obligate |
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observar |
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observ- |
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to
observe |
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obstruir |
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-yo |
obstruy- |
3rd
i-y |
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to
obstruct, block, clog, choke up, stop up |
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obtener |
e-ie |
-go |
obteng- |
obtuv- |
obtendr- |
to
get, obtain |
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obviar |
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-ío |
obví- |
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to
obviate, remove, surmount |
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ocultar |
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ocult- |
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to
hide, conceal, cover, keep secret |
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ocupar |
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ocup- |
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to
occupy |
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ocurrir |
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ocurr- |
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to
occur |
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odiar |
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odi- |
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to
hate |
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ofender |
e-ie |
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ofiend- |
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to
offend |
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ofrecer |
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-zco |
ofrezc- |
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to
offer |
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oír |
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-igo |
oig- |
3rd
i-y |
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to
hear |
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oler |
o-hue |
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huel- |
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to
smell |
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olvidar |
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olvid- |
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to
forget |
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omitir |
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omit- |
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to
omit |
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ondear |
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onde- |
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to
wave, make ripples, be wavy |
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operar |
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oper- |
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to
operate, run |
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opinar |
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opin- |
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to
opine, to be of the opinion |
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oponer |
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-go |
opong- |
opus- |
opondr- |
to
opose |
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optar |
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opt- |
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to
opt |
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orar |
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or- |
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to
pray |
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ordenar |
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orden- |
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to
order, arrange, put in order, tidy up |
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organizar |
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organic- |
1st
z-c |
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to
organize |
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orientar |
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orient- |
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to
orient, orientate |
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oscurecer |
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-zco
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oscurezc-
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to
obscure, get dark, darken |
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otorgar |
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otorgu-
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1st
g-gu |
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to
grant, give, award |
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