I must unhitch you must unhitch she must unhitch we must unhitch you must unhitch they must unhitch
Forma con V-ing
I must be unhitching you must be unhitching she must be unhitching we must be unhitching you must be unhitching they must be unhitching
Perfecto
I must have unhitched you must have unhitched she 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 she 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 she 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 she 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 she 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 she 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 she unhitch? must we unhitch? must you unhitch? must they unhitch?
Forma con V-ing
must I be unhitching? must you be unhitching? must she be unhitching? must we be unhitching? must you be unhitching? must they be unhitching?
Perfecto
must I have unhitched? must you have unhitched? must she 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 she 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 she 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 she 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 she 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 she have been unhitching? mustn't we have been unhitching? mustn't you have been unhitching? mustn't they have been unhitching?