The Conditional Tense
In English this is expressed by "I would (listen)". In French it is expressed through the following formula:
Person/Subject + future root with imperfect ending (both of which are already familiar to you).
e.g. Je travaillerais (I would work) Tu vendrais (you would sell)
Il finirait (he would finish) Nous aurions (we would have)
Vous voudriez (you would like) Elles viendraient (they would come)