
Verbe régulier : rain -  rained - rained
Traduction française : pleuvoir - faire pleuvoir 
Forme simple | Forme en V-ing | 
| - - it must rain - - -  | - - it must be raining - - -  | 
Perfect | Perfect en V-ing | 
| - - it must have rained - - -  | - - it must have been raining - - -  | 
Forme simple | Forme en V-ing | 
| - - it must not rain - - -  | - - it must not be raining - - -  | 
Perfect | Perfect en V-ing | 
| - - it must not have rained - - -  | - - it must not have been raining - - -  | 
Forme simple | Forme en V-ing | 
| - - must it rain? - - -  | - - must it be raining? - - -  | 
Perfect | Perfect en V-ing | 
| - - must it have rained? - - -  | - - must it have been raining? - - -  | 
Forme simple | Forme en V-ing | 
| - - must it not rain? - - -  | - - must it not be raining? - - -  | 
Perfect | Perfect en V-ing | 
| - - must it not have rained? - - -  | - - must it not have been raining? - - -  |