Formación

El "future perfect" está compuesto por dos elementos:
el "simple future" del verbo "to have" (will have) + el "past participle" del verbo principal

Sujeto	+ will have	+ "past participle" del verbo principal
He	will have	finished.
I	will have	finished.

 

To arrive, "future perfect"

Afirmativa	Negativa	Interrogativa	Negativa interrogativa
I will have arrived	I won't have arrived	Will I have arrived?	Won't I have arrived?
You will have arrived	You won't have arrived	Will you have arrived?	Won't you have arrived?
He will have arrived	He won't have arrived	Will he have arrived?	Won't he have arrived?
We will have arrived	We won't have arrived	Will we have arrived?	Won't we have arrived?
They will have arrived	They won't have arrived	Will they have arrived?	Won't they have arrived?

 

Forming the Past Participle (Regular Verbs)

If it's a regular verb, the past participle is the same as the simple past tense. In other words, it is formed like this:

Add "ed" to most verbs:

• jump > jumped
• paint > painted

If a verb of one syllable ends [consonant-vowel-consonant], double the final consonant and add "ed":

• chat > chatted
• stop > stopped

If the final consonant is "w," "x," or "y," don't double it:

• sew > sewed
• play > played
• fix > fixed

If last syllable of a longer verb is stressed and ends [consonant-vowel-consonant], double the last consonant and add "ed":

• incur > incurred
• prefer > preferred

If the first syllable of a longer verb is stressed and the verb ends [consonant-vowel-consonant], just add "ed":

• open > opened
• enter > entered
• swallow > swallowed

If the verb ends "e," just add "d":

• thrive > thrived
• guzzle > guzzled

If the verb ends [consonant + "y"], change the "y" to an "i" and add "ed":

• cry > cried
• fry > fried

Forming the Past Participle (Irregular Verbs)

If it's an irregular verb, the "past participle" is formed in all sorts of different ways. Here are some examples:

• arise > arisen
• catch > caught
• choose > chosen
• know > known

You just have to learn them!

 

Funciones

El "future perfect" se refiere a una acción que se completará en el futuro. Cuando empleamos este tiempo verbal, estamos proyectándonos hacia el futuro y echando la vista atrás, hacia una acción concluida en algún momento posterior al presente. La mayoría de las veces, se emplea con expresiones temporales.