I must squeal you must squeal she must squeal we must squeal you must squeal they must squeal
Forma con V-ing
I must be squealing you must be squealing she must be squealing we must be squealing you must be squealing they must be squealing
Perfecto
I must have squealed you must have squealed she must have squealed we must have squealed you must have squealed they must have squealed
Perfecto con V-ing
I must have been squealing you must have been squealing she must have been squealing we must have been squealing you must have been squealing they must have been squealing
Negación
Forma simple
I must not squeal you must not squeal she must not squeal we must not squeal you must not squeal they must not squeal
Forma con V-ing
I must not be squealing you must not be squealing she must not be squealing we must not be squealing you must not be squealing they must not be squealing
Perfecto
I must not have squealed you must not have squealed she must not have squealed we must not have squealed you must not have squealed they must not have squealed
Perfecto con V-ing
I must not have been squealing you must not have been squealing she must not have been squealing we must not have been squealing you must not have been squealing they must not have been squealing
Forma interrogativa
Forma simple
must I squeal? must you squeal? must she squeal? must we squeal? must you squeal? must they squeal?
Forma con V-ing
must I be squealing? must you be squealing? must she be squealing? must we be squealing? must you be squealing? must they be squealing?
Perfecto
must I have squealed? must you have squealed? must she have squealed? must we have squealed? must you have squealed? must they have squealed?
Perfecto con V-ing
must I have been squealing? must you have been squealing? must she have been squealing? must we have been squealing? must you have been squealing? must they have been squealing?
Forma interro-negativa
Forma simple
must I not squeal? must you not squeal? must she not squeal? must we not squeal? must you not squeal? must they not squeal?
Forma con V-ing
must I not be squealing? must you not be squealing? must she not be squealing? must we not be squealing? must you not be squealing? must they not be squealing?
Perfecto
must I not have squealed? must you not have squealed? must she not have squealed? must we not have squealed? must you not have squealed? must they not have squealed?
Perfecto con V-ing
must I not have been squealing? must you not have been squealing? must she not have been squealing? must we not have been squealing? must you not have been squealing? must they not have been squealing?