When you can use Future Perfect
- You use Future Perfect for actions which will finish BY a specific time in the future.
- You will have forgotten me by then. /specific time — by then/
- She will have sent the parcel by Monday. /specific time — by Monday/
- They won’t have completed the task by 7 o’clock. /specific time — by 7 o’clock/
- Will you have returned by Easter? /specific time — by Easter/
- You use Future Perfect for actions which will finish BEFORE another action takes place.
- I will have read the story by the time you come back. /First — I will have read the story; then — you come back/
- She will have passed all her exams before she travels abroad. /First — she will have passed all her exams first; then — she travels abroad/
- We will have packed all our stuff before we move the house. /First — we will have packed all our stuff; then — we move the house/
- You use Future Perfect to show the belief that something will have happened by some time in the future.
- He will have met her at the airport by now. /I don’t know for sure, it’s just my belief/
- They will have checked in by now. /I don’t know for sure, it’s just my belief/
- She will have left her apartment by now. /I don’t know for sure, it’s just my belief/
Time markers in Future Perfect
- by (specific time)
- by then
- by the time
- by Monday/May/New Year
How to build Future Perfect
Subject +will have + V3/ed
Subject + won’t have+ V3/ed
Will + subject + have + V3/ed
Wh + will + subject + have + V3/ed
Past Participle of regular and irregular verbs
When you build Future Perfect, you should use Past Participle (V3/ed) of the verb.
Past Participle of the verb
Add ending -ed:
Use its third form
You need to study third form of the verbs as irregular verbs have special forms in Past Participle: