fulfilled. The verb in the conditional clause will be in the present or the imperfect
subjunctive, the latter conveying a greater degree of uncertainty and being much less
frequent than the former.
Volveré a casa a las seis, a menos que haya demasiado trabajo en la
oficina.
I’ll come back home at six, unless there is too much work at the office.Lo terminaremos este sábado, a menos que ocurra algo imprevisto.
We’ll finish it this Saturday, unless something unforseen happens.
Me quedaré con ella, salvo que prefiera estar sola.
I’ll stay with her, unless she prefers to be alone.
A menos que pasara algo, estaré aquí a la hora acordada.
Unless something happened, I’ll be here at the agreed time.18.2.4 (p. 89); 18.2.3 (p. 88)
51.3.8 Aunque+ subjunctive
Aunque followed by the subjunctive indicates that the idea introduced by this word is a
condition rather than a fact.
Aunque me lo pidan no se lo daré.
Even if they ask me for it I will not give it to them.
Incluso aunque me lo explicaras creo que no lo entendería.
Even if you explained it to me I think I wouldn’t understand it.52.1.4 (p. 307)
Other conditional expressions 51.3