Future Perfect
The Future Perfect talks about an action that will be completed in the future. So in a way, we can say that we use this tense to talk about the past in the future. In the Future Perfect, we use verbs in the third form – Past Participle.
Affirmative sentences in Future Perfect
We form sentences by using the modal verb will, the auxiliary verb have, and the main verbs in Past Participle.
Subject + will + have + Past Participle + the rest of the sentence
I will have lived in Boston for two years next week.
The verb have has two forms: have and has. However, in Future Perfect we don’t use the form has with the third person singular like in present tenses.
She will has lived in Boston for two years next week.
She will have lived in Boston for two years next week.
Negative sentences in Future Perfect
We form negative sentences by adding not between will and have.
Subject + will + not + have + Past Participle + the rest of the sentence
I will not have lived in Boston for two years next week.
Questions in Future Perfect
Questions are formed by inversion of will.
Will + subject + have + Past Participle + the rest of the sentence
Will you have lived in Boston for two years next week?
The Usage of Future Perfect
We use the Future Perfect to talk about:
+ actions that will end before a specified time in the future
I will have finished working by 5 p.m.
She will have graduated from the university by 2022.
She will have graduated from the university by 2022.
+ the duration of an activity that will be completed in the future
In 2023 I will have known Sarah for 20 years.
Next summer I will have worked here for 10 years.
Next summer I will have worked here for 10 years.
+ actions that will happen before other actions
She will have spent all her money before she receives her paycheck.
I will have booked the hotel before I tell my boss I want a vacation.
I will have booked the hotel before I tell my boss I want a vacation.
+ something we are certain happened in the recent past
I’m sure the bus will have already left by now.
It’s 7 p.m. now so the store will have already been closed.
It’s 7 p.m. now so the store will have already been closed.
