I must incur you must incur he must incur we must incur you must incur they must incur
Forma con V-ing
I must be incurring you must be incurring he must be incurring we must be incurring you must be incurring they must be incurring
Perfecto
I must have incurred you must have incurred he must have incurred we must have incurred you must have incurred they must have incurred
Perfecto con V-ing
I must have been incurring you must have been incurring he must have been incurring we must have been incurring you must have been incurring they must have been incurring
Negación
Forma simple
I mustn't incur you mustn't incur he mustn't incur we mustn't incur you mustn't incur they mustn't incur
Forma con V-ing
I mustn't be incurring you mustn't be incurring he mustn't be incurring we mustn't be incurring you mustn't be incurring they mustn't be incurring
Perfecto
I mustn't have incurred you mustn't have incurred he mustn't have incurred we mustn't have incurred you mustn't have incurred they mustn't have incurred
Perfecto con V-ing
I mustn't have been incurring you mustn't have been incurring he mustn't have been incurring we mustn't have been incurring you mustn't have been incurring they mustn't have been incurring
Forma interrogativa
Forma simple
must I incur? must you incur? must he incur? must we incur? must you incur? must they incur?
Forma con V-ing
must I be incurring? must you be incurring? must he be incurring? must we be incurring? must you be incurring? must they be incurring?
Perfecto
must I have incurred? must you have incurred? must he have incurred? must we have incurred? must you have incurred? must they have incurred?
Perfecto con V-ing
must I have been incurring? must you have been incurring? must he have been incurring? must we have been incurring? must you have been incurring? must they have been incurring?
Forma interro-negativa
Forma simple
mustn't I incur? mustn't you incur? mustn't he incur? mustn't we incur? mustn't you incur? mustn't they incur?
Forma con V-ing
mustn't I be incurring? mustn't you be incurring? mustn't he be incurring? mustn't we be incurring? mustn't you be incurring? mustn't they be incurring?
Perfecto
mustn't I have incurred? mustn't you have incurred? mustn't he have incurred? mustn't we have incurred? mustn't you have incurred? mustn't they have incurred?
Perfecto con V-ing
mustn't I have been incurring? mustn't you have been incurring? mustn't he have been incurring? mustn't we have been incurring? mustn't you have been incurring? mustn't they have been incurring?