Conjugate diagnosticar in Spanish
to diagnose
diagnosticar is an irregular -ar verb ranked #356 among the most common Spanish verbs. For example: "Yo diagnostico todos los días." (I diagnose every day.). Use the tables below for full conjugation across all 7 tenses.
diagnosticar — Spanish Conjugation Chart
to diagnose · -ar verb · irregular (spelling-change -car) · conjugado.com
Describes current actions, habits, and general truths. The most frequently used tense — master it first.
| Pronoun | Conjugation |
|---|---|
| yo | diagnostico |
| tú | diagnosticas |
| él/ella/Ud. | diagnostica |
| nosotros | diagnosticamos |
| vosotros | diagnosticáis |
| ellos/ellas/Uds. | diagnostican |
Yo diagnostico todos los días.
I diagnose every day.
Describes completed past actions with a clear start and end. Key signals: ayer, el lunes pasado, de repente.
| Pronoun | Conjugation |
|---|---|
| yo | diagnostiqué * |
| tú | diagnosticaste |
| él/ella/Ud. | diagnosticó |
| nosotros | diagnosticamos |
| vosotros | diagnosticasteis |
| ellos/ellas/Uds. | diagnosticaron |
Nosotros diagnosticamos juntos.
We diagnose together.
Describes habitual past actions, background context, and ongoing states. Key signals: siempre, normalmente, cuando era niño.
| Pronoun | Conjugation |
|---|---|
| yo | diagnosticaba |
| tú | diagnosticabas |
| él/ella/Ud. | diagnosticaba |
| nosotros | diagnosticábamos |
| vosotros | diagnosticabais |
| ellos/ellas/Uds. | diagnosticaban |
Antes yo diagnosticaba con frecuencia.
Before, I used to diagnose often.
Describes future events and predictions. In everyday speech, ir a + infinitive is often preferred for planned events.
| Pronoun | Conjugation |
|---|---|
| yo | diagnosticaré |
| tú | diagnosticarás |
| él/ella/Ud. | diagnosticará |
| nosotros | diagnosticaremos |
| vosotros | diagnosticaréis |
| ellos/ellas/Uds. | diagnosticarán |
Mañana yo diagnosticaré.
Tomorrow I will diagnose.
Expresses what would happen under certain conditions — equivalent to "would" in English. Also used for polite requests.
| Pronoun | Conjugation |
|---|---|
| yo | diagnosticaría |
| tú | diagnosticarías |
| él/ella/Ud. | diagnosticaría |
| nosotros | diagnosticaríamos |
| vosotros | diagnosticaríais |
| ellos/ellas/Uds. | diagnosticarían |
Si pudiera, yo diagnosticaría.
If I could, I would diagnose.
Used in clauses expressing wishes, doubt, emotion, or uncertainty — typically after que. Triggers: querer, esperar, dudar, ojalá.
| Pronoun | Conjugation |
|---|---|
| yo | diagnostique * |
| tú | diagnostiques * |
| él/ella/Ud. | diagnostique * |
| nosotros | diagnostiquemos * |
| vosotros | diagnostiquéis * |
| ellos/ellas/Uds. | diagnostiquen * |
Quiero que tú diagnostiques más.
I want you to diagnose more.
Used to give commands and direct requests. Affirmative and negative forms differ significantly in Spanish.
| Pronoun | Conjugation |
|---|---|
| yo | - |
| tú | diagnostica |
| él/ella/Ud. | diagnostice |
| nosotros | diagnosticemos |
| vosotros | diagnosticad |
| ellos/ellas/Uds. | diagnosticen |
Él diagnostica con frecuencia.
He diagnoses often.
Test yourself
Type the correct conjugation for each prompt.
Example sentences
-
Yo diagnostico todos los días.
I diagnose every day.
-
¿Tú diagnosticas mucho?
Do you diagnose a lot?
-
Él diagnostica con frecuencia.
He diagnoses often.
-
Nosotros diagnosticamos juntos.
We diagnose together.
-
Ellos diagnostican bien.
They diagnose well.
-
Ayer diagnostiqué por primera vez.
Yesterday I diagnosed for the first time.
-
Quiero que tú diagnostiques más.
I want you to diagnose more.
-
Es importante diagnosticar correctamente.
It is important to diagnose correctly.
Common phrases with diagnosticar
- diagnosticar bien to diagnose well
- diagnosticar mucho to diagnose a lot
- dejar de diagnosticar to stop diagnoseing
- volver a diagnosticar to diagnose again