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