vacilar Present Subjunctive Conjugation
vacilar — to tease
Use 'vacile' (yo/él/ella/usted) and 'vacilen' (ellos/ellas/ustedes) for wishes, doubts, and emotions, like 'I hope you don't tease me.'
vacilar Present Subjunctive Forms
When to Use the Present Subjunctive
The present subjunctive is used when expressing wishes, emotions, doubts, or uncertainty about something happening now or in the future. For 'vacilar', you might say 'Espero que no me vaciles' (I hope you don't tease me) or 'Dudo que vacile a propósito' (I doubt he teases on purpose).
Notes on vacilar in the Present Subjunctive
Vacilar is regular in the present subjunctive. It follows the pattern of other -ar verbs, changing the stem vowel in some forms.
Example Sentences
Espero que no vaciles a tu hermano.
I hope you don't tease your brother.
tú
Quiero que vacilemos juntos.
I want us to tease each other.
nosotros
Dudo que ellos vacilen a propósito.
I doubt they tease on purpose.
ellos/ellas/ustedes
Me alegra que vaciles con tus amigos.
I'm happy that you tease with your friends.
tú
Common Mistakes
Mistake: Using the present indicative instead of the present subjunctive.
Correct: After expressions of doubt or desire like 'Espero que...', use 'no vaciles', not 'no vacilas'.
Why: Expressions of doubt, desire, emotion, and uncertainty trigger the subjunctive mood.
Mistake: Using the infinitive after 'que'.
Correct: 'Espero que vacilar' is incorrect; it should be 'Espero que vaciles'.
Why: When the subject changes (e.g., 'I hope *you* tease'), the verb needs to be conjugated in the appropriate mood and tense.
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Related Tenses
Present
yo: vacilo
Use the present 'vacilo' (I tease), 'vacilas' (you tease), 'vacila' (he/she/you tease) for current teasing or habitual teasing.
Preterite
yo: vacilé
Use the preterite 'vacilé' (I teased), 'vacilaste' (you teased), 'vaciló' (he/she/you teased) for completed past teasing actions.
Imperfect
yo: vacilaba
Use the imperfect 'vacilaba' (I used to tease) for past habits or ongoing teasing, like 'He always used to tease me.'
Future
yo: vacilaré
Use the future 'vacilaré' (I will tease) and 'vacilará' (he/she/you will tease) for predictions or definite future teasing.
Conditional
yo: vacilaría
Use the conditional 'vacilaría' (I would tease) for hypotheticals, polite requests, or future-in-the-past.
Imperfect Subjunctive
yo: vacilara
Use 'vacilara' or 'vacilase' for past hypotheticals, wishes, or polite requests, like 'If I teased you...'
Affirmative Imperative
yo: vacila
Use the imperative 'vacila' (tú) and 'vacilen' (ustedes) for direct commands like 'tease him!'
Negative Imperative
yo: no vaciles
Use 'no vaciles' (tú) and 'no vacilen' (ustedes) for negative commands, like 'don't tease him!'