Future Perfect Tense

1. When to Use?
   - to describe what will have happened in the future
                  before a different action takes place, or by a specific time.


2. How to Form?
 1) haber + past participles
      - haber conjugations :
           habré              habrás
           habrá              habremos
           habréis            habrán
 
2) Irregular past participles are the same as
                                                     those used in other perfect tenses.
(go back to to other perfect tenses to look for irregular past participles)


3) The auxiliary verb and the past participle are never separated.
  * Order: "no" + "object pronouns" + auxiliary verb
       
ex. (yo) No habré comido       -       I will not have eaten.
      Pablo le habrá dado un regalo a sus esposa
                  -        Pablo will have given a gift to his wife.
      Pablo no le habrá dado ningún regalo a sus esposa
                  -        Pablo will not have given a gift to his wife.