concertar Present Conjugation
concertar — to arrange
In the present tense, concertar is a stem-changer where the 'e' becomes 'ie' in all forms except nosotros and vosotros.
concertar Present Forms
When to Use the Present
Use the present to talk about setting up meetings, scheduling appointments, or agreeing on terms right now or as a habit.
Notes on concertar in the Present
This is an E-to-IE stem-changing verb. For example, 'yo concierto' but 'nosotros concertamos'.
Example Sentences
Concierto una cita con el médico para mañana.
I am arranging an appointment with the doctor for tomorrow.
yo
¿Conciertas tú la reunión con el cliente?
Are you setting up the meeting with the client?
tú
Nosotros concertamos los detalles del contrato.
We are agreeing on the details of the contract.
nosotros
Ellos conciertan una entrevista de trabajo.
They are arranging a job interview.
ellos/ellas/ustedes
Common Mistakes
Mistake: Using 'concerto' instead of 'concierto'.
Correct: Concierto
Why: You must apply the E-to-IE stem change in the first person singular.
Mistake: Applying the stem change to nosotros (conciertamos).
Correct: Concertamos
Why: Stem changes never apply to the nosotros or vosotros forms in the present indicative.
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Related Tenses
Preterite
yo: concerté
The preterite of concertar is completely regular, following the standard -ar pattern.
Imperfect
yo: concertaba
The imperfect of concertar is regular: concertaba, concertabas, concertaba, concertábamos, concertabais, concertaban.
Future
yo: concertaré
The future tense is regular: add the endings -é, -ás, -á, -emos, -éis, -án to the full infinitive concertar.
Conditional
yo: concertaría
The conditional of concertar is regular: concertaría, concertarías, concertaría, etc.
Present Subjunctive
yo: concierte
The present subjunctive follows the E-to-IE stem change: concierte, conciertes, concierte, concertemos, concertéis, concierten.
Imperfect Subjunctive
yo: concertara
The imperfect subjunctive of concertar is regular based on the preterite stem: concertara, concertaras, concertara...
Affirmative Imperative
yo: concierta
The imperative uses the stem change 'ie' for most commands: concierta (tú), concierte (usted).
Negative Imperative
yo: no conciertes
The negative imperative uses the present subjunctive forms: no conciertes, no concierte, no concertemos.