Advanced English · 20 min
Future perfect continuous
The point
Will have been plus -ing stresses the length of an activity up to a future point. By June she will have been working here for a year. The length marker is for or since, not a closed day such as yesterday.
Form and use
The future perfect continuous is will have been plus the -ing form. It looks back from a future point at an activity that has been going on, often with for or since. By June she will have been leading the team for a year. The been is required. Will have leading and will have been lead are wrong.
Forms: By June she will have been working here for a year. By June she won't have been working here for a year. Will she have been working here for a year by June? For plus a length: for a year, for three hours. Since plus a start: since March, since Monday. By plus the future point you look back from.
Use this when the duration matters, not only the completion. By noon I will have written the note is future perfect simple: the note is finished. By noon I will have been writing for four hours is future perfect continuous: the writing has duration. Choose simple when the result is the point. Choose continuous when how long is the point.
Keep the three pieces in order: will, have been, -ing. Do not drop been. Do not put for before a starting point: since March, not for March, when March is the start. For three months is a length. The question still starts with will, then the subject, then have been and the -ing form.
Don't translate it like this
Don't say
By June she will have been work here for a year.
Say
By June she will have been working here for a year.
6월이면 그녀는 여기서 일한 지 1년이 됩니다.
Will have been working.
Short examples
By June she will have been working here for a year.
6월이면 그녀는 여기서 일한 지 1년이 됩니다.
How long will you have been waiting?
얼마나 오래 기다리고 있게 됩니까?
By June she will have been leading the team for a year.
6월까지 그녀는 팀을 1년째 이끌고 있을 것입니다.
She will have been working here since March.
그녀는 3월부터 여기서 일하고 있을 것입니다.
By noon I will have been writing for four hours.
정오까지 나는 네 시간째 쓰고 있을 것입니다.
By June she won't have been working here for a year.
6월까지 그녀는 여기서 1년을 채우며 일하지는 못했을 것입니다.
Will she have been working here for a year by June?
6월까지 그녀는 여기서 1년째 일하고 있을까요?
By Friday we will have been waiting since Monday.
금요일까지 우리는 월요일부터 기다리고 있을 것입니다.
I will not have been living here for long by then.
그때까지 나는 여기서 오래 살지는 않았을 것입니다.
Questions
Every question has to be right to close this point.
Answer every question, then check.