I must shuttle you must shuttle he must shuttle we must shuttle you must shuttle they must shuttle
Forma con V-ing
I must be shuttling you must be shuttling he must be shuttling we must be shuttling you must be shuttling they must be shuttling
Perfecto
I must have shuttled you must have shuttled he must have shuttled we must have shuttled you must have shuttled they must have shuttled
Perfecto con V-ing
I must have been shuttling you must have been shuttling he must have been shuttling we must have been shuttling you must have been shuttling they must have been shuttling
Negación
Forma simple
I must not shuttle you must not shuttle he must not shuttle we must not shuttle you must not shuttle they must not shuttle
Forma con V-ing
I must not be shuttling you must not be shuttling he must not be shuttling we must not be shuttling you must not be shuttling they must not be shuttling
Perfecto
I must not have shuttled you must not have shuttled he must not have shuttled we must not have shuttled you must not have shuttled they must not have shuttled
Perfecto con V-ing
I must not have been shuttling you must not have been shuttling he must not have been shuttling we must not have been shuttling you must not have been shuttling they must not have been shuttling
Forma interrogativa
Forma simple
must I shuttle? must you shuttle? must he shuttle? must we shuttle? must you shuttle? must they shuttle?
Forma con V-ing
must I be shuttling? must you be shuttling? must he be shuttling? must we be shuttling? must you be shuttling? must they be shuttling?
Perfecto
must I have shuttled? must you have shuttled? must he have shuttled? must we have shuttled? must you have shuttled? must they have shuttled?
Perfecto con V-ing
must I have been shuttling? must you have been shuttling? must he have been shuttling? must we have been shuttling? must you have been shuttling? must they have been shuttling?
Forma interro-negativa
Forma simple
must I not shuttle? must you not shuttle? must he not shuttle? must we not shuttle? must you not shuttle? must they not shuttle?
Forma con V-ing
must I not be shuttling? must you not be shuttling? must he not be shuttling? must we not be shuttling? must you not be shuttling? must they not be shuttling?
Perfecto
must I not have shuttled? must you not have shuttled? must he not have shuttled? must we not have shuttled? must you not have shuttled? must they not have shuttled?
Perfecto con V-ing
must I not have been shuttling? must you not have been shuttling? must he not have been shuttling? must we not have been shuttling? must you not have been shuttling? must they not have been shuttling?