FUTURE PERFECT SIMPLE

FUTURE PERFECT SIMPLE

SUBJECT + SHALL / WILL + HAVE + VERB-pp + (Complements)
STATEMENT

They will have finished their tests by Saturday
He will have played tennis before six o'clock
I shall have studied for about half past seven

NEGATION

They will not have finished their tests by Saturday
He will not have played tennis before six o'clock
I shall not have studied for about half past seven

INTERROGATION 

Will they have finished their tests by Saturday?

Will he have played tennis before six o'clock?
Shall I have studied for about half past seven?
TIME EXPRESSIONS:

• AT (Hours) / ON (Days of the Week) / IN (Months, Years and Centuries)
• BY / BY THE TIME
• BEFORE

USES:

• Actions which will already be completed a certain time in the future. (You can say it is the past of the future): The match will have finished at 9:30