The future tense is also used to express wonder or probability in the present state.
¿Quién será ella? I wonder who she is? (Who could she be?)
Estará viajando solo. He is probably traveling alone.
For actions that will occur in the near future, the present tense is more commonly used.
Esta noche voy al cine. Tonight I'm going to the movies.
Further in the future, use the future tense.
El año que viene iré a España. Next year I'm going to Spain.
Irregulars
There are twelve common verbs that are irregular in the future tense. Their endings are regular, but their stems change. Since the endings are the same as all other future tense verbs, we show only the "yo" form, and have underlined the irregular stem. We have also grouped them according to their patterns of change. caber yo cabré poner yo pondré decir yo diré haber yo habré salir yo saldré hacer yo haré poder yo podré tener yo tendré querer yo querré valer yo valdré saber yo sabré venir yo vendré