falláis

Falléis is the second-person plural form of the Spanish verb fallar in the present subjunctive mood. It is used in dependent clauses after verbs and expressions that require the subjunctive, such as doubt, desire, emotion, or uncertainty. It is distinct from falláis, the present indicative vosotros form, which is used for straightforward statements about the present.

Conjugation notes: falláis is present indicative; falléis is present subjunctive. The endings for -ar verbs in the present subjunctive for vosotros are -éis, with an acute accent to indicate the correct stress. The full present-subjunctive paradigm for fallar is: yo falle, tú falles, él falle, nosotros fallemos, vosotros falléis, ellos fallen.

Usage and examples: Dudo que vosotros falléis en el examen si practicáis. Es posible que vosotros falléis al principio, pero con práctica podéis mejorar. The form falléis appears only in contexts requiring the subjunctive mood, typically in subordinate clauses following expressions of doubt, desire, emotion, necessity, or non-real situations. In regions that use the vosotros form, falléis is common in Spain; in many other Spanish varieties, the corresponding form for ustedes would be fallen.

Regional notes: In Latin American Spanish, the pronoun vosotros is rarely used, and the present-subjunctive form for ustedes is fallen. The distinction between falláis (present indicative) and falléis (present subjunctive) is primarily a feature of dialects that preserve the vosostros conjugation.

See also: Spanish grammar, subjunctive mood, noun-verb agreement, verb conjugation patterns.