Verbo regular: occur - occurred - occurred
Forma simple | Forma com V-ing |
I must occur you must occur he must occur we must occur you must occur they must occur | I must be occurring you must be occurring he must be occurring we must be occurring you must be occurring they must be occurring |
Perfeito | Perfeito com V-ing |
I must have occurred you must have occurred he must have occurred we must have occurred you must have occurred they must have occurred | I must have been occurring you must have been occurring he must have been occurring we must have been occurring you must have been occurring they must have been occurring |
Forma simple | Forma com V-ing |
I mustn't occur you mustn't occur he mustn't occur we mustn't occur you mustn't occur they mustn't occur | I mustn't be occurring you mustn't be occurring he mustn't be occurring we mustn't be occurring you mustn't be occurring they mustn't be occurring |
Perfeito | Perfeito com V-ing |
I mustn't have occurred you mustn't have occurred he mustn't have occurred we mustn't have occurred you mustn't have occurred they mustn't have occurred | I mustn't have been occurring you mustn't have been occurring he mustn't have been occurring we mustn't have been occurring you mustn't have been occurring they mustn't have been occurring |
Forma simple | Forma com V-ing |
must I occur? must you occur? must he occur? must we occur? must you occur? must they occur? | must I be occurring? must you be occurring? must he be occurring? must we be occurring? must you be occurring? must they be occurring? |
Perfeito | Perfeito com V-ing |
must I have occurred? must you have occurred? must he have occurred? must we have occurred? must you have occurred? must they have occurred? | must I have been occurring? must you have been occurring? must he have been occurring? must we have been occurring? must you have been occurring? must they have been occurring? |
Forma simple | Forma com V-ing |
mustn't I occur? mustn't you occur? mustn't he occur? mustn't we occur? mustn't you occur? mustn't they occur? | mustn't I be occurring? mustn't you be occurring? mustn't he be occurring? mustn't we be occurring? mustn't you be occurring? mustn't they be occurring? |
Perfeito | Perfeito com V-ing |
mustn't I have occurred? mustn't you have occurred? mustn't he have occurred? mustn't we have occurred? mustn't you have occurred? mustn't they have occurred? | mustn't I have been occurring? mustn't you have been occurring? mustn't he have been occurring? mustn't we have been occurring? mustn't you have been occurring? mustn't they have been occurring? |