I must soften you must soften she must soften we must soften you must soften they must soften
Forma con V-ing
I must be softening you must be softening she must be softening we must be softening you must be softening they must be softening
Perfecto
I must have softened you must have softened she must have softened we must have softened you must have softened they must have softened
Perfecto con V-ing
I must have been softening you must have been softening she must have been softening we must have been softening you must have been softening they must have been softening
Negación
Forma simple
I must not soften you must not soften she must not soften we must not soften you must not soften they must not soften
Forma con V-ing
I must not be softening you must not be softening she must not be softening we must not be softening you must not be softening they must not be softening
Perfecto
I must not have softened you must not have softened she must not have softened we must not have softened you must not have softened they must not have softened
Perfecto con V-ing
I must not have been softening you must not have been softening she must not have been softening we must not have been softening you must not have been softening they must not have been softening
Forma interrogativa
Forma simple
must I soften? must you soften? must she soften? must we soften? must you soften? must they soften?
Forma con V-ing
must I be softening? must you be softening? must she be softening? must we be softening? must you be softening? must they be softening?
Perfecto
must I have softened? must you have softened? must she have softened? must we have softened? must you have softened? must they have softened?
Perfecto con V-ing
must I have been softening? must you have been softening? must she have been softening? must we have been softening? must you have been softening? must they have been softening?
Forma interro-negativa
Forma simple
must I not soften? must you not soften? must she not soften? must we not soften? must you not soften? must they not soften?
Forma con V-ing
must I not be softening? must you not be softening? must she not be softening? must we not be softening? must you not be softening? must they not be softening?
Perfecto
must I not have softened? must you not have softened? must she not have softened? must we not have softened? must you not have softened? must they not have softened?
Perfecto con V-ing
must I not have been softening? must you not have been softening? must she not have been softening? must we not have been softening? must you not have been softening? must they not have been softening?