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obsesionar

to obsess

Complete conjugation tables and interactive practice exercises. This is a regular -ar verb.

The Spanish verb obsesionar means to obsess.

Present tense:

yoobsesiono
obsesionas
él/ella/ustedobsesiona
nosotrosobsesionamos
vosotrosobsesionáis
ellos/ellas/ustedesobsesionan

Complete Conjugation Tables

Reference all tenses and moods

🔄 Conjugations

subjunctive

imperfect

ellos/ellas/ustedesobsesionaran
yoobsesionara
obsesionaras
vosotrosobsesionarais
nosotrosobsesionáramos
él/ella/ustedobsesionara

The imperfect subjunctive forms like 'obsesionara' (he/she/you would obsess) are used for past hypotheticals or wishes.

Forms, examples & usage →

present

ellos/ellas/ustedesobsesionen
yoobsesione
obsesiones
vosotrosobsesionéis
nosotrosobsesionemos
él/ella/ustedobsesione

The present subjunctive 'obsesione' (I/he/she/you obsess) is used after wishes, doubts, and emotions.

Forms, examples & usage →

imperative

negative

no obsesiones
vosotrosno obsesionéis
ustedesno obsesionen
nosotrosno obsesionemos
ustedno obsesione

Negative commands like 'no obsesiones' (you singular) use the present subjunctive.

Forms, examples & usage →

affirmative

obsesiona
vosotrosobsesionad
ustedesobsesionen
nosotrosobsesionemos
ustedobsesione

Commands like 'obsesiona' (you singular) and 'obsesionen' (they/you all) are regular.

Forms, examples & usage →

indicative

conditional

ellos/ellas/ustedesobsesionarían
yoobsesionaría
obsesionarías
vosotrosobsesionaríais
nosotrosobsesionaríamos
él/ella/ustedobsesionaría

The conditional 'obsesionaría' (I would obsess) discusses hypothetical or polite future actions.

Forms, examples & usage →

preterite

ellos/ellas/ustedesobsesionaron
yoobsesioné
obsesionaste
vosotrosobsesionasteis
nosotrosobsesionamos
él/ella/ustedobsesionó

The preterite of obsesionar is regular: obsesioné, obsesionaste, obsesionó, obsesionamos, obsesionasteis, obsesionaron.

Forms, examples & usage →

imperfect

ellos/ellas/ustedesobsesionaban
yoobsesionaba
obsesionabas
vosotrosobsesionabais
nosotrosobsesionábamos
él/ella/ustedobsesionaba

The imperfect 'obsesionaba' (I used to obsess) describes ongoing or habitual past obsessions.

Forms, examples & usage →

present

ellos/ellas/ustedesobsesionan
yoobsesiono
obsesionas
vosotrosobsesionáis
nosotrosobsesionamos
él/ella/ustedobsesiona

The present tense 'obsesiono' (I obsess) describes current habits or ongoing actions.

Forms, examples & usage →

future

ellos/ellas/ustedesobsesionarán
yoobsesionaré
obsesionarás
vosotrosobsesionaréis
nosotrosobsesionaremos
él/ella/ustedobsesionará

The future tense 'obsesionaré' (I will obsess) predicts or expresses probability about future obsessions.

Forms, examples & usage →

Practice Conjugations

Test your knowledge with interactive exercises

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Take obsesionar from tables to real Spanish

Conjugation tables are the start. Read 200+ illustrated and narrated Spanish stories to see 'obsesionar' in action across real sentences — and build the instinct that native speakers have.