
diagnosticar Future Conjugation
diagnosticar — to diagnose
The future tense is regular: add endings to the infinitive (diagnosticaré, diagnosticarás, etc.).
diagnosticar Future Forms
When to Use the Future
Use this to predict when a result will be ready or to express what will be diagnosed after further testing.
Notes on diagnosticar in the Future
Diagnosticar is fully regular in the future tense.
Example Sentences
El doctor diagnosticará la causa tras los análisis.
The doctor will diagnose the cause after the tests.
él/ella/usted
Mañana diagnosticaremos el error del sistema.
Tomorrow we will diagnose the system error.
nosotros
Seguro que ellos diagnosticarán el problema pronto.
I'm sure they will diagnose the problem soon.
ellos/ellas/ustedes
Common Mistakes
Mistake: diagnosticara
Correct: diagnosticará
Why: Without the accent, it becomes the subjunctive; the accent is vital for the future tense.
Master Spanish verbs in context
Memorizing tables only gets you so far. Read 200+ illustrated and narrated Spanish stories to see verbs like 'diagnosticar' used naturally — in the tenses you're learning.
Related Tenses
Present
yo: diagnostico
The present tense is completely regular: diagnostico, diagnosticas, diagnostica, diagnosticamos, diagnosticáis, diagnostican.
Preterite
yo: diagnostiqué
Diagnosticar is regular except for the 'yo' form, which changes to diagnostiqué.
Imperfect
yo: diagnosticaba
The imperfect is regular: diagnosticaba, diagnosticabas, diagnosticaba, diagnosticábamos, diagnosticabais, diagnosticaban.
Conditional
yo: diagnosticaría
The conditional is regular: add -ía endings to the infinitive (diagnosticaría, diagnosticarías, etc.).
Present Subjunctive
yo: diagnostique
Diagnosticar requires a spelling change from 'c' to 'qu' in all forms: diagnostique, diagnostiques, diagnostique, etc.
Imperfect Subjunctive
yo: diagnosticara
The imperfect subjunctive follows the -ra pattern: diagnosticara, diagnosticaras, diagnosticara, etc.
Affirmative Imperative
yo: diagnostica
The imperative uses 'diagnostica' (tú) and 'diagnostique' (usted/ustedes).
Negative Imperative
yo: no diagnostiques
The negative imperative always uses the present subjunctive forms: no diagnostiques, no diagnostique, etc.