Read and understand the following explanations on usage of Future Perfect tense and then examine illustrative examples from Classics.
1. The Future Perfect expresses an action accomplished before a given future moment. The given future moment is usually expressed by adverbial phrases, clauses of time or understood from the situation (see
dialogues 1, 2, 3).
►Note: In adverbial clauses of time introduced by the conjunctions when, before, after, as soon as, till and until the Present Perfect is found to express a future action. It shows that the action of the subordinate clause will be accomplished before the action of the principal clause (which is usually expressed by the Future Indefinite) (dialogues 4, 5).
2. The Future Perfect is very occasionally used to express an action which begins before a given future moment and continues into it. This use is found with stative verbs (dialogue 6).
►Note: In adverbial clauses of time introduced by the conjunctions when, before, after, as soon as, till and until the Present Perfect is found to express a future action. It shows that the action of the subordinate clause will be accomplished before the action of the principal clause (which is usually expressed by the Future Indefinite) (dialogues 4, 5).
2. The Future Perfect is very occasionally used to express an action which begins before a given future moment and continues into it. This use is found with stative verbs (dialogue 6).