The future tense is expressed very simply in English – "I will ….". In French it is a little more complicated – the formula is as follows:
Person/Subject + future root with future ending
Endings
je ai For regular verbs the future root is the infinitive, to
tu as which you add the future ending to go with the person
il/elle a
nous ons For irregular verbs the future root must be learned
vous ez separately and may not look at all like the infinitive,
ils/elles ont though you add the same endings.
e.g. Regular
je travaillerai
tu vendras (drop the "e" from the infinitive vendre)
il finira
nous écouterons
vous attendrez (drop the "e" from the infinitive attendre)
elles choisiront
Irregular
verb future root example
avoir aur j’aurai
être ser tu seras
aller ir il ira
faire fer nous ferons
vouloir voudr vous voudrez
venir viendr elles viendront
For other irregular future roots, see the list of common verbs.