I must dig you must dig she must dig we must dig you must dig they must dig
Forma con V-ing
I must be digging you must be digging she must be digging we must be digging you must be digging they must be digging
Perfecto
I must have dug you must have dug she must have dug we must have dug you must have dug they must have dug
Perfecto con V-ing
I must have been digging you must have been digging she must have been digging we must have been digging you must have been digging they must have been digging
Negación
Forma simple
I mustn't dig you mustn't dig she mustn't dig we mustn't dig you mustn't dig they mustn't dig
Forma con V-ing
I mustn't be digging you mustn't be digging she mustn't be digging we mustn't be digging you mustn't be digging they mustn't be digging
Perfecto
I mustn't have dug you mustn't have dug she mustn't have dug we mustn't have dug you mustn't have dug they mustn't have dug
Perfecto con V-ing
I mustn't have been digging you mustn't have been digging she mustn't have been digging we mustn't have been digging you mustn't have been digging they mustn't have been digging
Forma interrogativa
Forma simple
must I dig? must you dig? must she dig? must we dig? must you dig? must they dig?
Forma con V-ing
must I be digging? must you be digging? must she be digging? must we be digging? must you be digging? must they be digging?
Perfecto
must I have dug? must you have dug? must she have dug? must we have dug? must you have dug? must they have dug?
Perfecto con V-ing
must I have been digging? must you have been digging? must she have been digging? must we have been digging? must you have been digging? must they have been digging?
Forma interro-negativa
Forma simple
mustn't I dig? mustn't you dig? mustn't she dig? mustn't we dig? mustn't you dig? mustn't they dig?
Forma con V-ing
mustn't I be digging? mustn't you be digging? mustn't she be digging? mustn't we be digging? mustn't you be digging? mustn't they be digging?
Perfecto
mustn't I have dug? mustn't you have dug? mustn't she have dug? mustn't we have dug? mustn't you have dug? mustn't they have dug?
Perfecto con V-ing
mustn't I have been digging? mustn't you have been digging? mustn't she have been digging? mustn't we have been digging? mustn't you have been digging? mustn't they have been digging?