Conjugación del verbo inglés
MUST HAPPEN
Verbo regular: happen - happened - happened
Forma simple | Forma con V-ing |
| - - it must happen - - - | - - it must be happening - - - |
Perfecto | Perfecto con V-ing |
| - - it must have happened - - - | - - it must have been happening - - - |
Forma simple | Forma con V-ing |
| - - it mustn't happen - - - | - - it mustn't be happening - - - |
Perfecto | Perfecto con V-ing |
| - - it mustn't have happened - - - | - - it mustn't have been happening - - - |
Forma simple | Forma con V-ing |
| - - must it happen? - - - | - - must it be happening? - - - |
Perfecto | Perfecto con V-ing |
| - - must it have happened? - - - | - - must it have been happening? - - - |
Forma simple | Forma con V-ing |
| - - mustn't it happen? - - - | - - mustn't it be happening? - - - |
Perfecto | Perfecto con V-ing |
| - - mustn't it have happened? - - - | - - mustn't it have been happening? - - - |