Verb Rocket
Gerund (gerundio)
Present participle (-ing form)
osificando
Past Participle
Used in compound tenses
osificado

Simple tenses

Present Indicative (presente de indicativo)
Present actions and habitual activities
PersonConjugation
yo
osifico
I ossify
tú
osificas
you ossify
él/ella/usted
osifica
he/she/you ossifies
nosotros
osificamos
we ossify
vosotros
osificáis
you all ossify
ellos/ustedes
osifican
they/you all ossify
Imperfect Indicative (imperfecto de indicativo)
Ongoing past actions and descriptions
PersonConjugation
yo
osificaba
I used to ossify
tú
osificabas
you used to ossify
él/ella/usted
osificaba
he/she/you used to ossify
nosotros
osificábamos
we used to ossify
vosotros
osificabais
you all used to ossify
ellos/ustedes
osificaban
they/you all used to ossify
Preterit (pretérito)
Completed past actions
PersonConjugation
yo
osifiqué
I ossified
tú
osificaste
you ossified
él/ella/usted
osificó
he/she/you ossified
nosotros
osificamos
we ossified
vosotros
osificasteis
you all ossified
ellos/ustedes
osificaron
they/you all ossified
Future (futuro)
Future actions and intentions
PersonConjugation
yo
osificaré
I will ossify
tú
osificarás
you will ossify
él/ella/usted
osificará
he/she/you will ossify
nosotros
osificaremos
we will ossify
vosotros
osificaréis
you all will ossify
ellos/ustedes
osificarán
they/you all will ossify
Conditional (potencial simple)
Hypothetical and conditional actions
PersonConjugation
yo
osificaría
I would ossify
tú
osificarías
you would ossify
él/ella/usted
osificaría
he/she/you would ossify
nosotros
osificaríamos
we would ossify
vosotros
osificaríais
you all would ossify
ellos/ustedes
osificarían
they/you all would ossify
Present Subjunctive (presente de subjuntivo)
Subjective present actions and desires
PersonConjugation
yo
osifique
that I ossify
tú
osifiques
that you ossify
él/ella/usted
osifique
that he/she/you ossify
nosotros
osifiquemos
that we ossify
vosotros
osifiquéis
that you all ossify
ellos/ustedes
osifiquen
that they/you all ossify
Imperfect Subjunctive (imperfecto de subjuntivo)
Subjective past actions and hypothetical situations
PersonConjugation
yo
osificara
or
osificase
that I ossified
tú
osificaras
or
osificases
that you ossified
él/ella/usted
osificara
or
osificase
that he/she/you ossified
nosotros
osificáramos
or
osificásemos
that we ossified
vosotros
osificarais
or
osificaseis
that you all ossified
ellos/ustedes
osificaran
or
osificasen
that they/you all ossified

Compound tenses

Present Perfect (perfecto de indicativo)
Actions completed recently or with present relevance
PersonConjugation
yo
he osificado
I have ossified
tú
has osificado
you have ossified
él/ella/usted
ha osificado
he/she/you have ossified
nosotros
hemos osificado
we have ossified
vosotros
habéis osificado
you all have ossified
ellos/ustedes
han osificado
they/you all have ossified
Pluperfect Indicative (pluscuamperfecto de indicativo)
Actions completed before another past action
PersonConjugation
yo
había osificado
I had ossified
tú
habías osificado
you had ossified
él/ella/usted
había osificado
he/she/you had ossified
nosotros
habíamos osificado
we had ossified
vosotros
habíais osificado
you all had ossified
ellos/ustedes
habían osificado
they/you all had ossified
Preterit Perfect (pretérito anterior)
Actions completed immediately before another past action
PersonConjugation
yo
hube osificado
I had ossified
tú
hubiste osificado
you had ossified
él/ella/usted
hubo osificado
he/she/you had ossified
nosotros
hubimos osificado
we had ossified
vosotros
hubisteis osificado
you all had ossified
ellos/ustedes
hubieron osificado
they/you all had ossified
Future Perfect (futuro perfecto)
Actions that will be completed by a future time
PersonConjugation
yo
habré osificado
I will have ossified
tú
habrás osificado
you will have ossified
él/ella/usted
habrá osificado
he/she/you will have ossified
nosotros
habremos osificado
we will have ossified
vosotros
habréis osificado
you all will have ossified
ellos/ustedes
habrán osificado
they/you all will have ossified
Conditional Perfect (potencial compuesto)
Actions that would have been completed under certain conditions
PersonConjugation
yo
habría osificado
I would have ossified
tú
habrías osificado
you would have ossified
él/ella/usted
habría osificado
he/she/you would have ossified
nosotros
habríamos osificado
we would have ossified
vosotros
habríais osificado
you all would have ossified
ellos/ustedes
habrían osificado
they/you all would have ossified
Subjunctive Present Perfect (perfecto de subjuntivo)
Subjective actions completed in relation to the present
PersonConjugation
yo
haya osificado
that I have ossified
tú
hayas osificado
that you have ossified
él/ella/usted
haya osificado
that he/she/you have ossified
nosotros
hayamos osificado
that we have ossified
vosotros
hayáis osificado
that you all have ossified
ellos/ustedes
hayan osificado
that they/you all have ossified
Subjunctive Past Perfect (pluscuamperfecto de subjuntivo)
Subjective actions completed before another past action
PersonConjugation
yo
hubiera osificado
that I had ossified
tú
hubieras osificado
that you had ossified
él/ella/usted
hubiera osificado
that he/she/you had ossified
nosotros
hubiéramos osificado
that we had ossified
vosotros
hubierais osificado
that you all had ossified
ellos/ustedes
hubieran osificado
that they/you all had ossified
Commands (imperativo)
Commands and direct orders
PersonCommandEnglish
tú
osifica
ossify! (you)
usted
osifique
ossify! (you formal)
nosotros
osifiquemos
let's ossify!
vosotros
osificad
ossify! (you all)
ustedes
osifiquen
ossify! (you all)
Negative Commands (imperativo negativo)
Negative commands and prohibitions
PersonCommandEnglish
tú
no osifiques
don't ossify! (you)
usted
no osifique
don't ossify! (you formal)
nosotros
no osifiquemos
let's not ossify!
vosotros
no osifiquéis
don't ossify! (you all)
ustedes
no osifiquen
don't ossify! (you all)
KEEP GOING

Stop looking osificar up. Start knowing it.

Short lessons explain the pattern behind every tense, then quizzes drill it. Levels 1–8 are free.