Your task
Fill in the gap in each sentence with the correct word or phrase.
0 / 15 answered
Your score
0 / 150%
Keep practising! Focus on the explanations below.
Quick rule
The Future Perfect describes an action that will be completed before a specific point or event in the future. It gives you a "looking back from the future" perspective: imagine yourself standing at that future moment — the action is already done, finished, behind you.
by + timeby the time + clausebefore + eventby then
See full explanation ↓About this exercise
This B2 set focuses on future perfect — 15 questions, each with an explanation of why the answer is right. English has twelve main tense forms: four presents (simple, continuous, perfect, perfect continuous), four pasts, and four futures. Each encodes a different perspective on time and aspect — whether an event is complete or ongoing, relevant to the present or purely historical, habitual or happening right now.
The rule in 30 seconds
The Future Perfect describes an action that will be completed before a specific point or event in the future. It gives you a "looking back from the future" perspective: imagine yourself standing at that future moment — the action is already done, finished, behind you.
Subject + will have + past participleby + timeby Friday, by 5pm, by 2030
by the time + clauseby the time you arrive
before + eventbefore the meeting ends
by thenthey will have left by then
by next week / yearby next month, by next summer
in X years' timein five years' time
by the end of…by the end of the year
already (future)they will already have gone