Questions in Past Tenses
The table below shows the way we build the questions in Past tenses in English.
| Affirmative | Questions | ||||
| Past Simple | I You He She It We You They  | 
        wrote a letter  yesterday.  | 
        What did | I you he she it we you they  | 
        write  yesterday?  | 
    
| Past Continuous | I He She It  | 
        was writing a letter at 5 p.m. yesterday. | What was | I He She It  | 
        doing  at 5 pm. yesterday?  | 
    
| We You They  | 
        were writing a letter at 5 p.m. yesterday. | What were | we you they  | 
        doing  at 5 p.m. yesterday?  | 
    |
| Past Perfect | I You He She It We You They  | 
        had written a letter before you arrived. | What had | I you he she it we you they  | 
        been writing  before you arrived?  | 
    
| Past Perfect Continuous | I You He She It We You They  | 
        had been writing a letter  before you arrived.  | 
        What had | I you he she it we you they  | 
        been writing  before you arrived?  |