
Verbe régulier : happen -  happened - happened
Traduction française : arriver - se passer 
Forme simple | Forme en V-ing | 
| - - it'll happen - - -  | - - it'll be happening - - -  | 
Perfect | Perfect en V-ing | 
| - - it'll have happened - - -  | - - it'll have been happening - - -  | 
Forme simple | Forme en V-ing | 
| - - it won't happen - - -  | - - it won't be happening - - -  | 
Perfect | Perfect en V-ing | 
| - - it won't have happened - - -  | - - it won't have been happening - - -  | 
Forme simple | Forme en V-ing | 
| - - will it happen? - - -  | - - will it be happening? - - -  | 
Perfect | Perfect en V-ing | 
| - - will it have happened? - - -  | - - will it have been happening? - - -  | 
Forme simple | Forme en V-ing | 
| - - won't it happen? - - -  | - - won't it be happening? - - -  | 
Perfect | Perfect en V-ing | 
| - - won't it have happened? - - -  | - - won't it have been happening? - - -  |