2. Usage
Corresponds best to English:
“I will have done something” (but the time hasn't come yet)
e.g. Lo habrá reparado para la proxima semana
He will have repaired it by next week
3. Formation
Use the FUTURE form of haber + past
participle of the verb!
Past participle for ar verbs: -ado
Past participle for er/ir verbs: - ido
habré hablado habremos viajado
habrás comido habréis trabajado
habrá vivido habrán salido
4. Irregulars
Bad news: More than 3.
Good news: If you already know the Perfect,
then you know all the Future pefect irregulars
as they use the same past participle. So
practice drilling. Now!