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