
arruinar Present Conjugation
arruinar — to ruin
Arruinar is regular in the present tense: arruino, arruinas, arruina, arruinamos, arruináis, arruinan.
arruinar Present Forms
When to Use the Present
Use the present tense to talk about things that are currently spoiling or ruining a situation, or to describe habitual actions that cause damage.
Notes on arruinar in the Present
Arruinar is completely regular in the present tense. It follows the standard -ar verb pattern with no stem changes.
Example Sentences
Siempre arruinas la sorpresa.
You always ruin the surprise.
tú
La lluvia arruina mis planes de hoy.
The rain ruins my plans for today.
él/ella/usted
Ellos arruinan la película con sus comentarios.
They ruin the movie with their comments.
ellos/ellas/ustedes
Common Mistakes
Mistake: arruino (without the 'u')
Correct: arruino
Why: Learners sometimes forget the 'u' because it's part of the stem, but the stem 'arruin-' must remain intact.
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Related Tenses
Preterite
yo: arruiné
The preterite of arruinar is regular: arruiné, arruinaste, arruinó, arruinamos, arruinasteis, arruinaron.
Imperfect
yo: arruinaba
In the imperfect, arruinar uses the regular -aba endings: arruinaba, arruinabas, arruinaba, arruinábamos, arruinabais, arruinaban.
Future
yo: arruinaré
The future of arruinar is formed by adding -é, -ás, -á, -emos, -éis, -án to the infinitive.
Conditional
yo: arruinaría
The conditional of arruinar is regular: add -ía, -ías, -ía, -íamos, -íais, -ían to the infinitive.
Present Subjunctive
yo: arruine
The present subjunctive of arruinar uses -e endings: arruine, arruines, arruine, arruinemos, arruinéis, arruinen.
Imperfect Subjunctive
yo: arruinara
The imperfect subjunctive of arruinar is regular: arruinara, arruinaras, arruinara, arruináramos, arruinarais, arruinaran.
Affirmative Imperative
yo: arruina
The imperative of arruinar uses arruina (tú), arruinad (vosotros), and subjunctive forms for others.
Negative Imperative
yo: no arruines
The negative imperative of arruinar always uses the present subjunctive forms preceded by 'no'.