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