supieran

Supieran is the third-person plural form of the imperfect subjunctive (subjuntivo imperfecto) of theSpanish verb saber. It corresponds to the form that ends with -ieran in the -ra variant (supieran) and is used in dependent clauses that require the imperfect subjunctive. The stem comes from the preterite form supieron, with the endings added in the subjunctive.

Forms and variations

In addition to supieran, there is a corresponding -se variant: supiesen, with the full set of endings for the imperfect subjunctive. The complete paradigm for saber in the imperfect subjunctive includes yo supiera, tú supieras, él/ella/usted supiera, nosotros supiéramos, vosotros supierais, ellos/ellas/ustedes supieran; the alternative forms supiese, supieses, supiese, supiésemos, supieseis, supiesen mirror the -se pattern. Supieran is therefore the third-person plural form used in contexts requiring the imperfect subjunctive.

Usage

Supieran appears in subordinate clauses introduced by si (if), cuando, aunque, como si, or verbs of perception, doubt, desire, or possibility, especially in hypothetical, non-real, or past-oriented contexts. It often occurs in conditional sentences with main clauses in the conditional or future, for example: Si ellos supieran la verdad, actuarían con cautela. It can also appear in indirect speech after a past-tense verb: Dijo que ellos supieran la verdad.

Examples

- Si ellos supieran la verdad, no actuarían así.

- Quería saber si ellos supieran la respuesta.

- Como si supieran la solución, no dijeron nada.

Supieran, along with supieran’s variant forms, is a standard example of the imperfect subjunctive in Spanish, used to express non-reality, uncertainty, or hypothetical past-present contrasts.