Теория:

Study some information about questions (general and special) in Past Perfect.
 
Для образования Past Perfect необходимо использовать вспомогательный глагол had и основной глагол в третьей форме (если это неправильный глагол), либо глагол с окончанием -ed (если глагол правильный).
Subject \(+\) had \(+\) V\(3\)/Ved \(+\) other parts of the sentence.
Для построения вопросительных предложений нужно использовать следующий порядок слов.
 
General question
Had \(+\) subject \(+\) V\(3\)/Ved \(+\) other parts of the sentence?
 
                               Had
  
 
I written?    
                        
Had
     
you written?
                                                         
  
Had
 
 
he, she, it written?
  
 
Had
 
we written?
 
Had
 
you written?
 
Had
 
they written?
 
Special question
Question word (when, why, how, what...) \(+\) had \(+\) subject \(+\) V\(3\)/Ved \(+\) other parts of the sentence?
  
Examples
 
Had you finished the project by \(7\) o'clock yesterday?
  
Why had you cooked lunch before your mum came home?
  
lunch.jpg
Источники:
www.ecoliteracy.org/download/rethinking-school-lunch-guide