
Verbo regular: happen - happened - happened
| Presente | Presente continuo | Pretérito | Pretérito continuo | 
| - - it happens - - - | - - it is happening - - - | - - it happened - - - | - - it was happening - - - | 
| Presente perfecto | Presente perfecto continuo | Pluscuamperfecto | Pluscuamperfecto continuo | 
| - - it has happened - - - | - - it has been happening - - - | - - it had happened - - - | - - it had been happening - - - | 
| Futuro simple | Futuro continuo | Futuro perfecto | Futuro perfecto contínuo | 
| - - it will happen - - - | - - it will be happening - - - | - - it will have happened - - - | - - it will have been happening - - - | 
| Presente | Presente continuo | Passado | Passado continuo | 
| - - it would happen - - - | - - it would be happening - - - | - - it would have happened - - - | - - it would have been happening - - - | 
| Infinitivo | Imperativo | 
| Infinitivo | Imperativo | ||
| to happen | - Let's happen - | 
| Presente | Passado | ||
| happening | happened |