Compruebes

Compruebes is the second-person singular present subjunctive form of the Spanish verb comprobar, meaning to verify or to check. In the subjunctive, it is used in dependent clauses that express doubt, possibility, desire, recommendation, or necessity, often after expressions such as es posible que, dudo que, quiero que, or es necesario que. The form also appears in questions and reported speech when the speaker refers to actions contingent on another's assertion.

The present subjunctive forms of comprobar are: yo compruebe, tú compruebes, él/ella/usted compruebe, nosotros comprobemos, vosotros comprobéis, ellos/ellas/ustedes comprueben. This form reflects the same stem change found in the present indicative (o to ue) for most persons, while maintaining the regular -ar verb endings in the subjunctive.

Usage examples include: Es crucial que tú compruebes la fuente de la información. Espero que él compruebe los resultados. In everyday speech, compruebes may occur in informal or regional variants, but it remains the standard second-person singular present subjunctive form in correct grammar.

Etymology: comprobar comes from the combination of the root probar (to prove, to test) with a prefix historically related to con-; the verb is treated as a regular -ar verb in its conjugation, apart from the stem-changing vowel in the present tense forms.