Form
- Positive: Subject + will + have + verb 3 (past participle)
- Negative: Subject + will + have + verb 3
- Question: Will + subject + have + verb 3?
Usage
Future perfect simple is used to talk about actions that will be finished before a certain time in the future (or a duration of an action up to a point of time in the future). Common time expressions used in the Future Perfect: before, by tomorrow/7 o'clock/next month, until/till...
For examples,
- By next November, I will have received my promotion.
- Will she have learned enough Chinese to communicate before she moves to Beijing?
- By the time I finish this course, I will have taken ten tests.
- Will you have finished your assignment by the time I get back?
- I will have been in Bangkok for six months by the time I leave.
- She will have worked at that company for three years when it finally closes.
ការប្រើ-- យើងប្រើ Future Perfect Simple ដើម្បី និយាយពី សកម្មភាពមួយដែលនឹងបាន បញ្ចប់ មុន ពេល វេលាជាក់លាក់ណាមួយនៅអនាគត ឬ ដើម្បីបង្ហាញពីរយៈពេល នៃសកម្មភាព បានកើត ឡើង តាំងពីមុន ហើយបន្តដល់អនាគត។