I must wax you must wax she must wax we must wax you must wax they must wax
Forma con V-ing
I must be waxing you must be waxing she must be waxing we must be waxing you must be waxing they must be waxing
Perfecto
I must have waxed you must have waxed she must have waxed we must have waxed you must have waxed they must have waxed
Perfecto con V-ing
I must have been waxing you must have been waxing she must have been waxing we must have been waxing you must have been waxing they must have been waxing
Negación
Forma simple
I must not wax you must not wax she must not wax we must not wax you must not wax they must not wax
Forma con V-ing
I must not be waxing you must not be waxing she must not be waxing we must not be waxing you must not be waxing they must not be waxing
Perfecto
I must not have waxed you must not have waxed she must not have waxed we must not have waxed you must not have waxed they must not have waxed
Perfecto con V-ing
I must not have been waxing you must not have been waxing she must not have been waxing we must not have been waxing you must not have been waxing they must not have been waxing
Forma interrogativa
Forma simple
must I wax? must you wax? must she wax? must we wax? must you wax? must they wax?
Forma con V-ing
must I be waxing? must you be waxing? must she be waxing? must we be waxing? must you be waxing? must they be waxing?
Perfecto
must I have waxed? must you have waxed? must she have waxed? must we have waxed? must you have waxed? must they have waxed?
Perfecto con V-ing
must I have been waxing? must you have been waxing? must she have been waxing? must we have been waxing? must you have been waxing? must they have been waxing?
Forma interro-negativa
Forma simple
must I not wax? must you not wax? must she not wax? must we not wax? must you not wax? must they not wax?
Forma con V-ing
must I not be waxing? must you not be waxing? must she not be waxing? must we not be waxing? must you not be waxing? must they not be waxing?
Perfecto
must I not have waxed? must you not have waxed? must she not have waxed? must we not have waxed? must you not have waxed? must they not have waxed?
Perfecto con V-ing
must I not have been waxing? must you not have been waxing? must she not have been waxing? must we not have been waxing? must you not have been waxing? must they not have been waxing?