Future Perfect
IMPORTANT: No Future in Time Clauses
Like all future forms, the Future Perfect cannot be used in clauses beginning with "when," "while," "before," "after," "by the time," "as soon as," "if" and "unless". In this lesson, all verbs in Time Clauses are italicized.
EXAMPLES:
I am going to see a movie when I have finished my homework. Correct
I am going to see a movie when I will have finished my homework. Not Correct
IMPORTANT: No Future in Time Clauses
Like all future forms, the Future Perfect cannot be used in clauses beginning with "when," "while," "before," "after," "by the time," "as soon as," "if" and "unless". In this lesson, all verbs in Time Clauses are italicized.
EXAMPLES:
I am going to see a movie when I have finished my homework. Correct
I am going to see a movie when I will have finished my homework. Not Correct
FORM: Future Perfect
[WILL HAVE] + [PAST PARTICIPLE]
EXAMPLE:
I will have perfected my English by the time I come back from the U.S.
[AM / IS / ARE] + [GOING TO HAVE] + [PAST PARTICIPLE]
EXAMPLE:
I am going to have perfected my English by the time I come back from the US.
NOTE: It is possible to use either "will" or "going to" to create the Future Perfect with little or no difference in meaning.
| USE 1 Completed Action Before Something in the Future |
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The Future Perfect expresses the idea that something will occur before another action in the future. It can also show that something will happen before a specific time in the future.
EXAMPLES:
By next November, I will have received my promotion.
By the time he gets home, she is going to have cleaned the entire house.
| USE 2 Duration Before Something in the Future (Non-continuous Verbs) |
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With Non-continuous Verbs and some non-continuous uses of Mixed Verbs, we use the Future Perfect to show that something will continue up until another action in the future.
EXAMPLES:
I will have been in London for six months by the time I leave.
By Monday, Susan is going to have had my book for a week.
Du-te Inapoi la Tenses
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