Теория:

Study some information about positive sentence in Future Perfect.
 
Для образования утвердительного предложения в Future Perfect необходимо использовать вспомогательный глагол will have и основной глагол в третьей форме (если это неправильный глагол), либо глагол с окончанием -ed (если глагол правильный).
Subject \(+\) will have \(+\) V\(3\)/Ved \(+\) other parts of the sentence.
              I                  
                                                                will have finished
 
       
            you
 
will have finished
 
he, she, it
 
will have finished
 
we
 
will have finished
 
You
 
will have finished
 
They
 
will have finished
 
Will have не изменяется по лицам и числам.
 
Examples
 
She will have run a marathon by \(10\) o'clock tomorrow.
  
Sam will have completed his report by \(2\) o'clock tomorrow.
  
report.jpg
Источники:
http://bkstroy.kz/otchet-po-ispolneniyutarifnoj-smety/report-writing/