Future Perfect
Use of the Future Perfect:
We use the Future Perfect to describe an action/make a forecast in the future to say that something will already be completed at a determined time in the future. It is normaly used with the time expression beginnig with by: by then, by that time, by the 16th, by Monday, by this time tomorrow, by this afternoon/evening etc. This verb form is not very commonly used in present day English.
a completed action in the future
I will have finished my homework by 7.00 this evening.
a forecast in the future
by the end of the month a will have saved £100.
Key words
.
- By Tuesday
- By this time tmrw.
- By the 21st
- By next month
- By this summer
Form
will + perfect infinitive + past participle. Note (have for all persons no has 3rd person)
Affirmative form
| Long forms | Contracted forms |
|---|---|
| I will have finished my essay by next week. | I‘ll have finished my essay by next week. |
| You will have finished your essay by next Tuesday. | You‘ll have finished your essay by next Tuesday. |
| He will have finished his essay by spring. | He‘ll have finished his essay by spring. |
Negative form
| Long forms | Contracted forms |
|---|---|
| I will not have spoken to her by tonight . | I won’t have spoken to her by tonight. |
| You will not have spoken to her by tmrw. | You won’t have spoken to her by tmrw. |
| He will not have spoken to her by tonight. | He won’t have spoken to her by tonight. |
Interogative form
| Long forms | Contracted forms |
|---|---|
| Will I have cleaned the room by next Monday? | There are no contracted forms. |
| Will you have cleaned the room by next week? | |
| Will he have cleaned the room by tmrw? |